how to cite sources in a research paper apa style

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• Research Guides

Format Your Paper & Cite Your Sources

• APA Style, 7th Edition
• Citing Sources
• Avoid Plagiarism
• MLA Style (8th/9th ed.)

APA Tutorial

Formatting your paper, headings organize your paper (2.27), video tutorials, reference list format (9.43).

• Elements of a Reference

Reference Examples (Chapter 10)

Dois and urls (9.34-9.36), in-text citations.

• In-Text Citations Format
• In-Text Citations for Specific Source Types

NoodleTools

• Chicago Style
• Harvard Style
• Other Styles
• Annotated Bibliographies
• How to Create an Attribution

What is APA Style?

APA style was created by social and behavioral scientists to standardize scientific writing. APA style is most often used in:

• psychology,
• social sciences (sociology, business), and

If you're taking courses in any of these areas, be prepared to use APA style.

For in-depth guidance on using this citation style, refer to Publication Manual of the American Psychological Association , 7th ed. We have several copies available at the MJC Library at the call number  BF 76.7 .P83 2020 .

APA Style, 7th ed.

In October 2019, the American Psychological Association made radical changes its style, especially with regard to the format and citation rules for students writing academic papers. Use this guide to learn how to format and cite your papers using APA Style, 7th edition.

You can start by viewing the  video tutorial .

For help on all aspects of formatting your paper in APA Style, see   The Essentials  page on the APA Style website.

• sans serif fonts such as 11-point Calibri, 11-point Arial, or 10-point Lucida Sans Unicode, or
• serif fonts such as 12-point Times New Roman, 11-point Georgia, or normal (10-point) Computer Modern (the default font for LaTeX)
• There are exceptions for the  title page ,  tables ,  figures ,  footnotes , and  displayed equations .
• Margins :  Use 1-in. margins on every side of the page.
• Align the text of an APA Style  paper to the left margin . Leave the right margin uneven, or “ragged.”
• Do not use full justification for student papers.
• Do not insert hyphens (manual breaks) in words at the end of line. However, it is acceptable if your word-processing program automatically inserts breaks in long hyperlinks (such as in a DOI or URL in a reference list entry).
• Indent the first line of each paragraph of text 0.5 in . from the left margin. Use the tab key or the automatic paragraph-formatting function of your word-processing program to achieve the indentation (the default setting is likely already 0.5 in.). Do not use the space bar to create indentation. 
• There are exceptions for the  title page ,  section labels ,  abstract ,  block quotations ,  headings ,  tables and figures ,  reference list , and  appendices .

Paper Elements

Student papers generally include, at a minimum: 

• Title Page (2.3)
• Text (2.11)
• References  (2.12)

Student papers may include additional elements such as tables and figures depending on the assignment. So, please check with your teacher!

Student papers generally  DO NOT  include the following unless your teacher specifically requests it:

• Running head
• Author note

For complete information on the  order of pages , see the APA Style website.

Number your pages consecutively starting with page 1. Each section begins on a new page. Put the pages in the following order:

• Page 1: Title page
• Page 2: Abstract (if your teacher requires an abstract)
• Page 3: Text 
• References begin on a new page after the last page of text
• Footnotes begin on a new page after the references (if your teacher requires footnotes)
• Tables begin each on a new page after the footnotes (if your teacher requires tables) 
• Figures begin on a new page after the tables (if your teacher requires figures)
• Appendices begin on a new page after the tables and/or figures (if your teacher requires appendices)

Sample Papers With Built-In Instructions

To see what your paper should look like, check out these sample papers with built-in instructions.

APA Style uses five (5) levels of headings to help you organize your paper and allow your audience to identify its key points easily. Levels of headings establish the hierarchy of your sections just like you did in your paper outline.

APA tells us to use "only the number of headings necessary to differentiate distinct section in your paper." Therefore, the number of heading levels you create depends on the length and complexity of your paper.

See the chart below for instructions on formatting your headings:

Use Word to Format Your Paper:

Use Google Docs to Format Your Paper:

Placement:  The reference list  appears at the end of the paper, on its own page(s). If your research paper ends on page 8, your References begin on page 9.

Heading:  Place the section label References  in bold at the top of the page, centered.

Arrangement:  Alphabetize entries by author's last name. If source has no named author, alphabetize by the title, ignoring A, An, or The. (9.44-9.48)

Spacing:  Like the rest of the APA paper, the reference list is double-spaced throughout. Be sure NOT to add extra spaces between citations.

Indentation:  To make citations easier to scan, add a  hanging indent  of 0.5 in. to any citation that runs more than one line. Use the paragraph-formatting function of your word processing program to create your hanging indent.  

See Sample References Page (from APA Sample Student Paper):

Elements of Reference List Entries: (Chapter 9)

References generally have four elements, each of which has a corresponding question for you to answer:

• Author:   Who is responsible for this work? (9.7-9.12)
• Date:   When was this work published? (9.13-9.17)
• Title:   What is this work called? (9.18-9.22)
• Source:   Where can I retrieve this work? (9.23-9.37)

By using these four elements and answering these four questions, you should be able to create a citation for any type of source.

For complete information on all of these elements, checkout the APA Style website.

This infographic shows the first page of a journal article. The locations of the reference elements are highlighted with different colors and callouts, and the same colors are used in the reference list entry to show how the entry corresponds to the source.

To create your references, you'll simple look for these elements in your source and put them together in your reference list entry.

American Psychological Association.  Example of where to find reference information for a journal article  [Infographic]. APA Style Center. https://apastyle.apa.org/style-grammar-guidelines/references/basic-principles

Below you'll find two printable handouts showing APA citation examples. The first is an abbreviated list created by MJC Librarians. The second, which is more comprehensive, is from the APA Style website. Feel free to print these for your convenience or use the links to reference examples below:

• APA Citation Examples Created by MJC Librarians for you.
• Common References Examples (APA Handout) Printable handout from the American Psychological Association.
• APA Style Quick Reference Guide See how to format three typical types of references.
• Journal Article
• Magazine Article
• Newspaper Article
• Edited Book Chapter
• Webpage on a Website

Classroom or Intranet Sources

• Classroom Course Pack Materials
• How to Cite ChatGPT
• Dictionary Entry
• Government Report
• Legal References (Laws & Cases)
• TED Talk References
• Religious Works
• Open Educational Resources (OER)
• Archival Documents and Collections

You can view the entire Reference Examples website below and view a helpful guide to finding useful APA style topics easily:

• APA Style: Reference Examples
• Navigating the not-so-hidden treasures of the APA Style website
• Missing Reference Information

Sometimes you won't be able to find all the elements required for your reference. In that case, see the  instructions in Table 9.1 of the APA style manual in section 9.4 or the APA Style website below:

• Direct Quotation of Material Without Page Numbers

The DOI or URL is the final component of a reference list entry. Because so much scholarship is available and/or retrieved online, most reference list entries end with either a DOI or a URL.

• A  DOI  is a unique alphanumeric string that identifies content and provides a persistent link to its location on the internet. DOIs can be found in database records and the reference lists of published works.
• A  URL  specifies the location of digital information on the internet and can be found in the address bar of your internet browser. URLs in references should link directly to the cited work when possible.

When to Include DOIs and URLs:

• Include a DOI for all works that have a DOI, regardless of whether you used the online version or the print version.
• If an online work has both a DOI and a URL, include only the DOI.
• For works without DOIs from websites (not including academic research databases), provide a URL in the reference (as long as the URL will work for readers).
• For works without DOIs from most academic research databases, do not include a URL or database information in the reference because these works are widely available. The reference should be the same as the reference for a print version of the work.
• For works from databases that publish original, proprietary material available only in that database (such as the UpToDate database) or for works of limited circulation in databases (such as monographs in the ERIC database), include the name of the database or archive and the URL of the work. If the URL requires a login or is session-specific (meaning it will not resolve for readers), provide the URL of the database or archive home page or login page instead of the URL for the work. (See APA Section 9.30 for more information). 
• If the URL is no longer working or no longer provides readers access to the content you intend to cite, try to find an archived version using the Internet Archive , then use the archived URL. If there is no archived URL, do not use that resource.

Format of DOIs and URLs:

Your DOI should look like this: 

https://doi.org/10.1037/a0040251

Follow these guidelines from the APA Style website.

APA Style uses the  author–date citation system , in which a brief in-text citation points your reader to the full reference list entry at the end of your paper. The in-text citation appears within the body of the paper and briefly identifies the cited work by its author and date of publication. This method enables your reader to locate the corresponding entry in the alphabetical reference list at the end of your paper.

Each work you cite  must  appear in the reference list, and each work in the reference list must be cited in the text (or in a table, figure, footnote, or appendix) except for the following (See APA, 8.4):

• Personal communications (8.9)
• General mentions of entire websites, whole periodicals (8.22), and common software and apps (10.10) in the text do not require a citation or reference list entry.
• The source of an epigraph does not usually appear in the reference list (8.35)
• Quotations from your research participants do not need citations or reference list entries (8.36)
• References included in a statistical meta-analysis, which are marked with an asterisk in the reference list, may be cited in the text (or not) at the author’s discretion. This exception is relevant only to authors who are conducting a meta-analysis (9.52).

Formatting Your In-Text Citations

Parenthetical and Narrative Citations: ( See APA Section  8.11)

In APA style you use the author-date citation system for citing references within your paper. You incorporate these references using either a  parenthetical   or a  narrative  style.

Parenthetical Citations

• In parenthetical citations, the author name and publication date appear in parentheses, separated by a comma. (Jones, 2018)
• A parenthetical citation can appear within or at the end of a sentence.
• When the parenthetical citation is at the end of the sentence, put the period or other end punctuation after the closing parenthesis.
• If there is no author, use the first few words of the reference list entry, usually the "Title" of the source: ("Autism," 2008) See APA 8.14
• When quoting, always provide the author, year, and specific page citation or paragraph number for nonpaginated materials in the text (Santa Barbara, 2010, p. 243).  See APA 8.13
• For most citations, the parenthetical reference is placed BEFORE the punctuation: Magnesium can be effective in treating PMS (Haggerty, 2012).

Narrative Citations 

In narrative citations, the author name or title of your source appears within your text and the publication date appears in parentheses immediately after the author name. 

• Santa Barbara (2010) noted a decline in the approval of disciplinary spanking of 26 percentage points from 1968 to 1994.

In-Text Citation Checklist

• In-Text Citation Checklist Use this useful checklist from the American Psychological Association to ensure that you've created your in-text citations correctly.

In-Text Citations for Specific Types of Sources

Quotations from Research Participants

Personal Communications

Secondary Sources  

Use NoodleTools to Cite Your Sources  

NoodleTools can help you create your references and your in-text citations.

• NoodleTools Express No sign in required . When you need one or two quick citations in MLA, APA, or Chicago style, simply generate them in NoodleTools Express then copy and paste what you need into your document. Note: Citations are not saved and cannot be exported to a word processor using NoodleTools Express.
• NoodleTools (Login Full Database) This link opens in a new window Create and organize your research notes, share and collaborate on research projects, compose and error check citations, and complete your list of works cited in MLA, APA, or Chicago style using the full version of NoodleTools. You'll need to Create a Personal ID and password the first time you use NoodleTools.

See How to Use NoodleTools Express to Create a Citation in APA Format

Additional NoodleTools Help

• NoodleTools Help Desk Look up questions and answers on the NoodleTools Web site
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Except where otherwise noted, this work is licensed under CC BY-SA 4.0 and CC BY-NC 4.0 Licenses .

APA Style 7th Edition: Citing Your Sources

Apa 7th edition, what is the purpose, quick links.

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APA Publications in the Library

This guide pertains to the 7th edition of the APA Manual.

This guide is designed to support the citation and reference needs of USC students, staff, and faculty.  The 7th edition of the manual does make distinctions between formatting certain components for academic use over publication.  This guide will distinguish student/academic formatting where applicable. 

This guide is designed as a "quick" reference to common APA citation, reference and formatting criteria.  When in doubt, we encourage users to consult with the APA publication manual or APA website for further clarification as the authority on formatting.

Attribution for guide: Adapted from American Psychological Association. (2020). Publication manual of the American Psychological Association (7th ed).  https://doi.org/10.1037/0000165-000

What is the purpose of citations?

Citations help readers locate your sources. They help to continue the scholarly conversation. To learn more about how citations can help you avoid plagiarism, view this interactive tutorial: 

USC Library Lessons: Avoiding Plagiarism through Citations

When considering citations and references for your papers, you can ask yourself, "could someone find this information in the future?"

A client's personal file would not need a citation because your reader cannot go find that information again.  Census statistics would require a citation because your reader could go locate that information again.

APA requires FOUR ELEMENTS of every citation:

• Who- Author of content
• When- Date content was published
• What- Title of content
• Where- Publication information. This can be the website you got it from or the journal or book's publication information.

If any of the elements listed above are unavailable, check out "Missing Reference Information" from APA for more information.

• APA Style Website As part of our Style and Grammar Guidelines, we explain the basics of paper format, grammar, punctuation, in-text citations, references, bias-free language, and more. Much of what you used to find on the sixth edition blog, you can now find on the APA Style website.
• Organizing Your Social Sciences Research Paper by Robert V. Labaree Last Updated Apr 11, 2024 469861 views this year
• Owl Purdue 7th Edition Style Guide and Formatting Writing guide from Owl Purdue covering the 7th edition of the APA Manual
• Quick Reference Guide Quick guide on how to identify components to configure a reference for Journal article, book, and chapter from an edited book.
• Annotated Sample Student Paper Sample student paper with formatting annotations.
• Sample student paper
• Annotated Sample Professional Paper Sample professional paper with formatting annotations
• Sample professional paper
• USC Libraries APA Style Quick Guide
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APA Citation Guide (7th edition) : Getting Started

• Getting Started
• How do I Cite?
• In-Text Citations
• Reference List and Sample Paper
• Additional Resources

Header Image

APA 7th Edition

The major changes in APA 7th edition:

• Book  references now omit the publisher location.
• Journal articles  should always include an issue number.
• Sources retrieved from  databases  are now referenced as print sources.
• You can add up to 20  authors  in a reference list instead of only 7.
• Social media  examples were added.
• Websites’  URL s omit the “Retrieved from” or "Accessed from" phrase.

Digital Object Identifiers (DOI)

Also known as a permalink, a DOI, or  digital object identifier , is an article's permanent online location. DOIs are used for a variety of academic and non-academic sources that are located online. 

Include a DOI for all works that have a DOI, regardless of whether you used the online version or the print version. If an online work has both a DOI and a URL, include only the DOI; if the source only has a URL, include the URL.

What is APA?

APA style was created by the American Psychological Association. It is a set of rules for research papers and publications.

In APA, you must cite sources that you have paraphrased, quoted, or consulted to write your research paper. Cite your sources in two places:

• In the body of your paper (in-text citation).
• In the Reference list at the end of your paper (full bibliographic reference).
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APA Citation Style 7th Edition: Welcome

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What is APA?

APA style was created by the American Psychological Association. It is a set of rules for publications, including research papers.

In APA, you must "cite" sources that you have paraphrased, quoted or otherwise used to write your research paper. Cite your sources in two places:

• In the body of your paper where you add a brief in-text citation.
• In the Reference list at the end of your paper where you give more complete information for the source.

Acknowledgement

What's new in the 7th edition of apa.

Below is a summary of the major changes in the 7th edition of the APA Publication Manual.

Essay Format:

• Font - While you still can use Times New Roman 12, you are free to use other fonts. Calibri 11, Arial 11, Lucida Sans 10, and Georgia 11 are all acceptable.
• Headers - No running headers are required for student papers.
• Tables and Figures - There is a standardized format for both tables and figures.

Style, Grammar, Usage:

• Singular "they" required in two situations: when used by a known person as their personal pronoun or when the gender of a singular person is not known.
• Use only one space after a sentence-ending period.

Citation Style:

• Developed the 'Four Elements of a Reference" (Author, Date, Title, Source) to help writers to create references for source types not explicitly examined in the APA Manual.
• Three or more authors can be abbreviated to First author, et al. on the first citation.
• Up to 20 authors are spelled out in the References List.
• Publisher location is not required for books
• Ebook platform, format, or device is not required for eBooks.  
• Library database names are generally not required
• No "doi:" prefix, simply include the doi.
• All hyperlinks retain the https://
• Links can be "live" in blue with underline or black without underlining

Commonly Used Terms

Citing : The process of acknowledging the sources of your information and ideas.

DOI (doi) : Some electronic content, such as online journal articles, is assigned a unique number called a Digital Object Identifier (DOI or doi). Items can be tracked down online using their doi.

In-Text Citation : A brief note at the point where information is used from a source to indicate where the information came from. An in-text citation should always match more detailed information that is available in the Reference List.

Paraphrasing : Taking information that you have read and putting it into your own words.

Plagiarism : Taking, using, and passing off as your own, the ideas or words of another.

Quoting : The copying of words of text originally published elsewhere. Direct quotations generally appear in quotation marks and end with a citation.

Reference : Details about one cited source.

Reference List : Contains details on ALL the sources cited in a text or essay, and supports your research and/or premise.

Retrieval Date : Used for websites where content is likely to change over time (e.g. Wikis), the retrieval date refers to the date you last visited the website.

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How to Cite Your Sources

Overview of apa citations, common reference examples, featured resources, understanding apa citations 7th edition tutorial.

• Chicago/Turabian
• Other Styles
• How to Cite AI Tools
• In-text Citations
• Reference List Citations

In-text citations provide brief information about a source and refer the reader to the full citation in the reference list.

For more information about in-text citations, check out these guides from the APA website:

Parenthetical vs. Narrative in-text citations 

For more examples of how to cite different type of sources (e.g. podcasts, tweets, press releases, and more), check out this guide from the APA website: APA Common Reference Examples

Journal Article

Edwards, A. A., Steacy, L. M., Siegelman, N., Rigobon, V. M., Kearns, D. M., Rueckl, J. G., & Compton, D. L. (2022). Unpacking the unique relationship between set for variability and word reading development: Examining word- and child-level predictors of performance. Journal of Educational Psychology, 114(6), 1242–1256. https://doi.org/10.1037/edu0000696

Online Magazine Article

Thomson, J. (2022, September 8). Massive, strange white structures appear on Utah’s Great Salt Lake. Newsweek. https://www.newsweek.com/mysterious-mounds-great-salt-lake-utah-explainedmirabilite-1741151

Online Newspaper Article

Roberts, S. (2020, April 9). Early string ties us to Neanderthals. The New York Times. https://www.nytimes.com/2020/04/09/science/neanderthals-fiber-string-math.html

Authored Book

Kaufman, K. A., Glass, C. R., & Pineau, T. R. (2018). Mindful sport performance enhancement: Mental training for athletes and coaches. AmericanPsychological Association. https://doi.org/10.1037/0000048-000

Edited Book Chapter 

Zeleke, W. A., Hughes, T. L., & Drozda, N. (2020). Home–school collaboration to promote mind– body health. In C. Maykel & M. A. Bray (Eds.),Promoting mind–body health in schools: Interventions for mental health professionals (pp. 11–26). American Psychological Association. https://doi.org/10.1037/0000157-002

Click on the image for more details about citation formatting 

• APA Formatting and Style Guide From Purdue OWL (Online Writing Lab). Sample paper plus lots of examples. Includes PowerPoint presentation.
• APA Style Website From the American Psychological Association this official APA website offers resources on APA style and grammar. Search the blog for answers to question about how to format citations for sources that are a bit more tricky.
• SDSU Library APA Citations Tutorial
• The Bluebook: A Uniform System of Citation [Research Desk KF245 .B58] APA follows the Bluebook for citing legal materials.
• Free DOI Lookup From CrossRef.org. Look here to find DOIs to complete APA citations for journal articles. DOIs can also be added to Chicago Manual of Style citations.
• Merriam-Webster's Collegiate Dictionary Preferred dictionary by many style manuals for spelling, capitalization, etc. Part of the Encyclopedia Britannica Online. Limit to Merriam-Webster Dictionary & Thesaurus when searching.
• APA Style Blog Articles that discuss topics related to using the APA style

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Cite Your Sources: APA

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Table of Contents

What is APA Style?

APA format is a citation style created by the American Psychological Association . It is used for research papers in many college classes, including Social Science classes. The style manual for APA is in the seventh edition of the Publication Manual of the American Psychological Association by the American Psychological Association Staff. The seventh edition was published in October 2019.

General Guidelines for APA

General guidelines for American Psychological Association  citation style:

• Center the word References one inch from the top of the page, on a new page, at the end of the paper. References should be in bold.  
• Double-spacing is used between, as well as within, each entry.  
• Use a hanging indent: begin the first line of each entry at the left margin, and indent all subsequent lines of an entry one-half inch (5 spaces).  
• List reference sources alphabetically by author’s last name. If the source has no author, alphabetize by the first significant word in the title ignoring the word A, An, or The.  
• List author by last name, then a comma, followed by first and second initials (if available).  
• Place publication year in parentheses ( ) following the author(s)’ name(s).  
• Use italics for titles of books, journals, newspapers, encyclopedias, or websites.  
• Capitalize only certain words in the title on the References page: the first word, the first word in a subtitle, and all proper nouns. However, when referring to a work within the body of the paper, capitalize all major words of four letters or more.  
• Separate the author(s)’ name(s), the date (in parentheses), the title, and the publication information with periods.  
• Acceptable fonts now include: 11-point Calibri, 11-point Arial, or 10-point Lucida Sans Unicode. Serif fonts such as 12-point Times New Roman, 11-point Georgia, or normal (10-point) Computer Modern (the default font for LaTeX) are also acceptable.  
• Use “they” as a singular pronoun. The manual advises writers to use “they” for a person whose gender is unknown or irrelevant.  
• Use “person-first” language whenever possible. For example, “a child with autism” is generally preferable to “autistic” or “an autistic child.”  
• Use one space after a period at the end of a sentence unless an instructor says otherwise.  
• Use quotation marks around linguistic examples rather than highlighting these examples with italics. For example, one might write that a computer user should press the “A” key, rather than press the A key .  
• In the references list, up to 20 authors should now be included in an entry.  
• Digital object identifiers (DOIs) and URLs are now both presented as hyperlinks for electronic sources. The label “DOI:” is no longer used for entries that include a DOI.  
• If your document is to be viewed electronically, hyperlinks should be active.  
• The words “Retrieved from” (preceding the URL or DOI) are now only used when a retrieval date is also provided in the citation.

In-text Citations

In-text parenthetical citations : Whenever you use a quotation, a paraphrase, or a summary, you should give the author’s last name (or the title if no author is included) and the year in parentheses; if no date is provided, use the abbreviation “n.d.” for no date. You should also add the page number if you are using a quotation from a printed source. A parenthetical source for a quotation from a printed source might look like this: (Ross, 2020, p. 42).

Parenthetical/In-text Citation: (Mallon, 1989) or (Mallon, 1989, p. 13), if a direct quotation is used.

If the author is not named in the signal phrase, place the author’s name, the year, and the page number in parentheses after the quotation. Example: Bolton (2020) pointed out that students who do not use libraries often find frustration in their research efforts (p. 74).

For more examples, consult the Publication Manual of the American Psychological Association (2019).

All sources with three authors or more are now attributed in-text using the name of the first author followed by “et al.”

Example APA Citations

How to cite secondary sources.

Secondary sources are also sometimes called "indirect citations."

• In scholarly work,  a primary source reports original content ;  a secondary source refers to content first reported in another source.
• Cite secondary sources sparingly - for instance, when the original work is out of print, unavailable, or available only in a language that you do not understand. If possible, as a matter of good scholarly practice, find the primary source, read it, and cite it directly rather than citing a secondary source. For example, rather than citing an instructor's lecture or a textbook or encyclopedia that in turn cites original research, find, read, and cite the original research directly (unless an instructor has directed you to do otherwise).
• When citing a secondary source,  provide a reference list entry for the secondary source that you used.   In the text, identify the primary source and then write "as cited in" the secondary source that you used . If the year or publication of the primary source is known, also include it in the text; if the year of the primary sources is unknown, it can be omitted from the in-text citation.
• For example, if you read a work by Lyon et al. (2014) in which Rabbitt (1982) was cited, and you were unable to read Rabbitt's work yourself, cite Rabbitt's work as the original source, followed by Lyon et al.'s work as the secondary source. e.g. (Rabbitt, 1982, as cited in Lyon et al., 2014)
• If the year of the primary source is unknown, omit it from the in-text citation e.g., Allport’s diary (as cited in Nicholson, 2003) 

In Text examples

In Warkinton’s study (as cited in Roberts, 2020), children’s cognitive growth and development …

Roberts (2020) examined Warkinton’s study on children’s cognitive growth and development……

Reference List examples

Roberts, M. (2020). Children and cognition and the development of language.  Psychological Reports ,  19 (7), 412-419.

Note: You only include resources you accessed/read in your References list

How to Cite ChatGPT

Creating a reference to chatgpt or other ai models and software.

OpenAI. (2023). ChatGPT (May 3 version) [Large language model].  https://chat.openai.com/chat

• Parenthetical citation: (OpenAI, 2023)
• Narrative citation: OpenAI (2023)

Author: The author of the model is OpenAI.

Date: The date is the year of the version you used. 

Title: The name of the model is “ChatGPT,” so that serves as the title and is italicized in your reference, as shown in the template. 

Type of Material: Large language model in brackets

Location: Link to the website

In-text citation for ChatGPT

General format

(Company, date; see Appendix A for the full transcript).

When prompted with "Are signed languages appropriate for deaf babies?” the ChatGPT-generated text indicated that research had show that deaf babies can learn signed languages comparable to hearing babies learning spoken language. (OpenAI, 2023; see Appendix A for the full transcript).

APA Style: How to cite ChatGPT

Hvcc writing and research center (wrc) apa 7 handouts.

• APA 7 In-text Citations and General Guidelines
• APA 7 Citation Examples and Formulas

Online Help with APA

• APA 7 set up in Google Docs Need to set up a paper in APA format using Google Docs? Watch this video for instructions.
• APA formatting from Purdue Online Writing Lab (OWL)
• Santa Fe College Library APA 7 Guide with Examples

What is a doi?

What is a digital object identifier, or  doi ?

A digital object identifier (doi) is a unique alphanumeric string assigned by a registration agency ( the International DOI Foundation) to identify content and provide a persistent link to it's location on the Internet. The publisher assigns a doi when the article is published and made available electronically.

We recommend that when doi's are available, you include them for both print and electronic sources. The doi is typically located on the first page of the electronic journal, near the copyright notice. The DOI will be included in the citation of articles found in our databases.

Sample APA Paper

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How to Cite a Research Paper in APA

Last Updated: October 19, 2022 Fact Checked

This article was co-authored by wikiHow Staff . Our trained team of editors and researchers validate articles for accuracy and comprehensiveness. wikiHow's Content Management Team carefully monitors the work from our editorial staff to ensure that each article is backed by trusted research and meets our high quality standards. There are 12 references cited in this article, which can be found at the bottom of the page. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 159,502 times. Learn more...

If you’re citing a research article or paper in APA style, you’ll need to use a specific citation format that varies depending on the source. Assess whether your source is an article or report published in an academic journal or book, or whether it is an unpublished research paper, such as a print-only thesis or dissertation. Either way, your in-text citations will need to include information about the author (if available) and the date when your source was published or written.

Sample Citations

Writing an In-Text Citation

• For example, you may write, “Gardener (2008) notes, ‘There are several factors to consider about lobsters’ (p. 199).”

• For example, you may write, “‘There are several factors to consider about lobsters’ (Gardner, 2008, p. 199).” Or, “The paper claims, ‘The fallen angel trope is common in religious and non-religious texts’ (Meek & Hill, 2015, p.13-14).”
• For articles with 3-5 authors, write out the names of all the authors the first time you cite the source. For example: (Hammett, Wooster, Smith, & Charles, 1928). In subsequent citations, write only the first author’s name, followed by et al.: (Hammett et al., 1928).
• If there are 6 or more authors for the paper, include the last name of the first author listed and then write "et al." to indicate that there are more than 5 authors.
• For example, you may write, "'This is a quote' (Minaj et al., 1997, p. 45)."

• For example, you may write, “‘The risk of cervical cancer in women is rising’ (American Cancer Society, 2012, p. 2).”

• For example, you may write, “‘Shakespeare may have been a woman’ (“Radical English Literature,” 2004, p. 45).” Or, “The paper notes, ‘There is a boom in Virgin Mary imagery’ (“Art History in Italy,” 2011, p. 32).”

• For example, you may write, “‘There are several factors to consider about lobsters’ (Gardner, 2008, p. 199).” Or, “The paper claims, ‘The fallen angel trope is common in religious and non-religious texts’ (“Iconography in Italian Frescos,” 2015, p.13-14).”

• For example, you may write, “‘There are several factors to consider about lobsters’ (Gardner, 2008, p. 199).” Or, “The paper claims, ‘The fallen angel trope is common in religious and non-religious texts’ (“Iconography in Italian Frescos,” 2015, p.145-146).”

• For example, you may write, “‘The effects of food deprivation are long-term’ (Mett, 2005, para. 18).”

Creating a Reference List Citation for a Published Source

• Material on websites is also considered “published,” even if it’s not peer-reviewed or associated with a formal publishing company.
• While academic dissertations or theses that are print-only are considered unpublished, these types of documents are considered published if they’re included in an online database (such as ProQuest) or incorporated into an institutional repository.

• For example, you may write, “Gardner, L. M.” Or, “Meek, P. Q., Kendrick, L. H., & Hill, R. W.”
• If there is no author, you can list the name of the organization that published the research paper. For example, you may write, “American Cancer Society” or “The Reading Room.”
• Formally published documents that don’t list an author or that have a corporate author are typically reports or white papers .

• For example, you may write, “Gardner, L. M. (2008).” Or, “American Cancer Society. (2015).”

• For example, you may write, “Gardner, L. M. (2008). Crustaceans: Research and data.” Or, “American Cancer Society. (2015). Cervical cancer rates in women ages 20-45.”

• For example, for a journal article, you may write, “Gardner, L. M. (2008). Crustaceans: Research and data. Modern Journal of Malacostracan Research, 25, 150-305.”
• For a book chapter, you could write: “Wooster, B. W. (1937). A comparative study of modern Dutch cow creamers. In T. E. Travers (Ed.), A Detailed History of Tea Serviceware (pp. 127-155). London: Wimble Press."

• For example, you may write, “Kotb, M. A., Kamal, A. M., Aldossary, N. M., & Bedewi, M. A. (2019). Effect of vitamin D replacement on depression in multiple sclerosis patients. Multiple Sclerosis and Related Disorders, 29, 111-117. Retrieved from PubMed, https://www.ncbi.nlm.nih.gov/pubmed/30708308.
• If you’re citing a paper or article that was published online but did not come from an academic journal or database, provide information about the author (if known), the date of publication (if available), and the website where you found the article. For example: “Hill, M. (n.d.). Egypt in the Ptolemaic Period. Retrieved from https://www.metmuseum.org/toah/hd/ptol/hd_ptol.htm”

Citing Unpublished Sources in Your Reference List

• Print-only dissertations or theses.
• Articles or book chapters that are in press or have been recently prepared or submitted for publication.
• Papers that have been rejected for publication or were never intended for publication (such as student research papers or unpublished conference papers).

• If the paper is currently being prepared for publication, include the author’s name, the year when the current draft was completed, and the title of the article in italics, followed by “Manuscript in preparation.” For example: Wooster, B. W. (1932). What the well-dressed man is wearing. Manuscript in preparation.
• If the paper has been submitted for publication, format the citation the same way as if it were in preparation, but instead follow the title with “Manuscript submitted for publication.” For example: Wooster, B. W. (1932). What the well-dressed man is wearing. Manuscript submitted for publication.
• If the paper has been accepted for publication but is not yet published, replace the date with “in press.” Do not italicize the paper title, but do include the title of the periodical or book in which it will be published and italicize that. For example: Wooster, B. W. (in press). What the well-dressed man is wearing. Milady’s Boudoir.

• If the paper was written for a conference but never published, your citation should look like this: Riker, W. T. (2019, March). Traditional methods for the preparation of spiny lobe-fish. Paper presented at the 325th Annual Intergalactic Culinary Conference, San Francisco, CA.
• For an unpublished paper written by a student for a class, include details about the institution where the paper was written. For example: Crusher, B. H. (2019). A typology of Cardassian skin diseases. Unpublished manuscript, Department of External Medicine, Starfleet Academy, San Francisco, CA.

• For example, you may write, “Pendlebottom, R. H. (2011). Iconography in Italian Frescos (Unpublished doctoral dissertation). New York University, New York, United States.”

Community Q&A

• If you want certain information to stand out in the research paper, then you can consider using a block quote. Thanks Helpful 0 Not Helpful 0

You Might Also Like

• ↑ https://libraryguides.vu.edu.au/apa-referencing/7JournalArticles
• ↑ https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_formatting_and_style_guide/in_text_citations_author_authors.html
• ↑ https://bowvalleycollege.libguides.com/c.php?g=714519&p=5093747
• ↑ https://guides.libraries.psu.edu/apaquickguide/intext
• ↑ https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_formatting_and_style_guide/in_text_citations_the_basics.html
• ↑ https://libguides.southernct.edu/c.php?g=7125&p=34582#1951239
• ↑ https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_formatting_and_style_guide/reference_list_electronic_sources.html
• ↑ https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_formatting_and_style_guide/reference_list_articles_in_periodicals.html
• ↑ https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_formatting_and_style_guide/reference_list_books.html
• ↑ https://morlingcollege.libguides.com/apareferencing/unpublished-or-informally-published-work
• ↑ https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_formatting_and_style_guide/general_apa_faqs.html
• ↑ https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_formatting_and_style_guide/reference_list_other_print_sources.html

About This Article

To cite a research paper in-text in APA, name the author in the text to introduce the quote and put the publication date for the text in parentheses. At the end of your quote, put the page number in parentheses. If you don’t mention the author in your prose, include them in the citation. Start the citation, which should come at the end of the quote, by listing the author’s last name, the year of publication, and the page number. Make sure to put all of this information in parentheses. If there’s no author, use the name of the organization that published the paper or the first few words from the title. To learn how to cite published and unpublished sources in your reference list, keep reading! Did this summary help you? Yes No

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Home / Guides / Citation Guides / How to Cite Sources

How to Cite Sources

Here is a complete list for how to cite sources. Most of these guides present citation guidance and examples in MLA, APA, and Chicago.

If you’re looking for general information on MLA or APA citations , the EasyBib Writing Center was designed for you! It has articles on what’s needed in an MLA in-text citation , how to format an APA paper, what an MLA annotated bibliography is, making an MLA works cited page, and much more!

MLA Format Citation Examples

The Modern Language Association created the MLA Style, currently in its 9th edition, to provide researchers with guidelines for writing and documenting scholarly borrowings.  Most often used in the humanities, MLA style (or MLA format ) has been adopted and used by numerous other disciplines, in multiple parts of the world.

MLA provides standard rules to follow so that most research papers are formatted in a similar manner. This makes it easier for readers to comprehend the information. The MLA in-text citation guidelines, MLA works cited standards, and MLA annotated bibliography instructions provide scholars with the information they need to properly cite sources in their research papers, articles, and assignments.

• Book Chapter
• Conference Paper
• Documentary
• Encyclopedia
• Google Images
• Kindle Book
• Memorial Inscription
• Museum Exhibit
• Painting or Artwork
• PowerPoint Presentation
• Sheet Music
• Thesis or Dissertation
• YouTube Video

APA Format Citation Examples

The American Psychological Association created the APA citation style in 1929 as a way to help psychologists, anthropologists, and even business managers establish one common way to cite sources and present content.

APA is used when citing sources for academic articles such as journals, and is intended to help readers better comprehend content, and to avoid language bias wherever possible. The APA style (or APA format ) is now in its 7th edition, and provides citation style guides for virtually any type of resource.

Chicago Style Citation Examples

The Chicago/Turabian style of citing sources is generally used when citing sources for humanities papers, and is best known for its requirement that writers place bibliographic citations at the bottom of a page (in Chicago-format footnotes ) or at the end of a paper (endnotes).

The Turabian and Chicago citation styles are almost identical, but the Turabian style is geared towards student published papers such as theses and dissertations, while the Chicago style provides guidelines for all types of publications. This is why you’ll commonly see Chicago style and Turabian style presented together. The Chicago Manual of Style is currently in its 17th edition, and Turabian’s A Manual for Writers of Research Papers, Theses, and Dissertations is in its 8th edition.

Citing Specific Sources or Events

• Declaration of Independence
• Gettysburg Address
• Martin Luther King Jr. Speech
• President Obama’s Farewell Address
• President Trump’s Inauguration Speech
• White House Press Briefing

Additional FAQs

• Citing Archived Contributors
• Citing a Blog
• Citing a Book Chapter
• Citing a Source in a Foreign Language
• Citing an Image
• Citing a Song
• Citing Special Contributors
• Citing a Translated Article
• Citing a Tweet

6 Interesting Citation Facts

The world of citations may seem cut and dry, but there’s more to them than just specific capitalization rules, MLA in-text citations , and other formatting specifications. Citations have been helping researches document their sources for hundreds of years, and are a great way to learn more about a particular subject area.

Ever wonder what sets all the different styles apart, or how they came to be in the first place? Read on for some interesting facts about citations!

1. There are Over 7,000 Different Citation Styles

You may be familiar with MLA and APA citation styles, but there are actually thousands of citation styles used for all different academic disciplines all across the world. Deciding which one to use can be difficult, so be sure to ask you instructor which one you should be using for your next paper.

2. Some Citation Styles are Named After People

While a majority of citation styles are named for the specific organizations that publish them (i.e. APA is published by the American Psychological Association, and MLA format is named for the Modern Language Association), some are actually named after individuals. The most well-known example of this is perhaps Turabian style, named for Kate L. Turabian, an American educator and writer. She developed this style as a condensed version of the Chicago Manual of Style in order to present a more concise set of rules to students.

3. There are Some Really Specific and Uniquely Named Citation Styles

How specific can citation styles get? The answer is very. For example, the “Flavour and Fragrance Journal” style is based on a bimonthly, peer-reviewed scientific journal published since 1985 by John Wiley & Sons. It publishes original research articles, reviews and special reports on all aspects of flavor and fragrance. Another example is “Nordic Pulp and Paper Research,” a style used by an international scientific magazine covering science and technology for the areas of wood or bio-mass constituents.

4. More citations were created on  EasyBib.com  in the first quarter of 2018 than there are people in California.

The US Census Bureau estimates that approximately 39.5 million people live in the state of California. Meanwhile, about 43 million citations were made on EasyBib from January to March of 2018. That’s a lot of citations.

5. “Citations” is a Word With a Long History

The word “citations” can be traced back literally thousands of years to the Latin word “citare” meaning “to summon, urge, call; put in sudden motion, call forward; rouse, excite.” The word then took on its more modern meaning and relevance to writing papers in the 1600s, where it became known as the “act of citing or quoting a passage from a book, etc.”

6. Citation Styles are Always Changing

The concept of citations always stays the same. It is a means of preventing plagiarism and demonstrating where you relied on outside sources. The specific style rules, however, can and do change regularly. For example, in 2018 alone, 46 new citation styles were introduced , and 106 updates were made to exiting styles. At EasyBib, we are always on the lookout for ways to improve our styles and opportunities to add new ones to our list.

Why Citations Matter

Here are the ways accurate citations can help your students achieve academic success, and how you can answer the dreaded question, “why should I cite my sources?”

They Give Credit to the Right People

Citing their sources makes sure that the reader can differentiate the student’s original thoughts from those of other researchers. Not only does this make sure that the sources they use receive proper credit for their work, it ensures that the student receives deserved recognition for their unique contributions to the topic. Whether the student is citing in MLA format , APA format , or any other style, citations serve as a natural way to place a student’s work in the broader context of the subject area, and serve as an easy way to gauge their commitment to the project.

They Provide Hard Evidence of Ideas

Having many citations from a wide variety of sources related to their idea means that the student is working on a well-researched and respected subject. Citing sources that back up their claim creates room for fact-checking and further research . And, if they can cite a few sources that have the converse opinion or idea, and then demonstrate to the reader why they believe that that viewpoint is wrong by again citing credible sources, the student is well on their way to winning over the reader and cementing their point of view.

They Promote Originality and Prevent Plagiarism

The point of research projects is not to regurgitate information that can already be found elsewhere. We have Google for that! What the student’s project should aim to do is promote an original idea or a spin on an existing idea, and use reliable sources to promote that idea. Copying or directly referencing a source without proper citation can lead to not only a poor grade, but accusations of academic dishonesty. By citing their sources regularly and accurately, students can easily avoid the trap of plagiarism , and promote further research on their topic.

They Create Better Researchers

By researching sources to back up and promote their ideas, students are becoming better researchers without even knowing it! Each time a new source is read or researched, the student is becoming more engaged with the project and is developing a deeper understanding of the subject area. Proper citations demonstrate a breadth of the student’s reading and dedication to the project itself. By creating citations, students are compelled to make connections between their sources and discern research patterns. Each time they complete this process, they are helping themselves become better researchers and writers overall.

When is the Right Time to Start Making Citations?

Make in-text/parenthetical citations as you need them.

As you are writing your paper, be sure to include references within the text that correspond with references in a works cited or bibliography. These are usually called in-text citations or parenthetical citations in MLA and APA formats. The most effective time to complete these is directly after you have made your reference to another source. For instance, after writing the line from Charles Dickens’ A Tale of Two Cities : “It was the best of times, it was the worst of times…,” you would include a citation like this (depending on your chosen citation style):

(Dickens 11).

This signals to the reader that you have referenced an outside source. What’s great about this system is that the in-text citations serve as a natural list for all of the citations you have made in your paper, which will make completing the works cited page a whole lot easier. After you are done writing, all that will be left for you to do is scan your paper for these references, and then build a works cited page that includes a citation for each one.

Need help creating an MLA works cited page ? Try the MLA format generator on EasyBib.com! We also have a guide on how to format an APA reference page .

2. Understand the General Formatting Rules of Your Citation Style Before You Start Writing

While reading up on paper formatting may not sound exciting, being aware of how your paper should look early on in the paper writing process is super important. Citation styles can dictate more than just the appearance of the citations themselves, but rather can impact the layout of your paper as a whole, with specific guidelines concerning margin width, title treatment, and even font size and spacing. Knowing how to organize your paper before you start writing will ensure that you do not receive a low grade for something as trivial as forgetting a hanging indent.

Don’t know where to start? Here’s a formatting guide on APA format .

3. Double-check All of Your Outside Sources for Relevance and Trustworthiness First

Collecting outside sources that support your research and specific topic is a critical step in writing an effective paper. But before you run to the library and grab the first 20 books you can lay your hands on, keep in mind that selecting a source to include in your paper should not be taken lightly. Before you proceed with using it to backup your ideas, run a quick Internet search for it and see if other scholars in your field have written about it as well. Check to see if there are book reviews about it or peer accolades. If you spot something that seems off to you, you may want to consider leaving it out of your work. Doing this before your start making citations can save you a ton of time in the long run.

Finished with your paper? It may be time to run it through a grammar and plagiarism checker , like the one offered by EasyBib Plus. If you’re just looking to brush up on the basics, our grammar guides  are ready anytime you are.

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How to Cite Sources in Your Research Paper

• Introduction
• Choosing a Style
• Chicago & Turabian
• NLM & Vancouver
• Avoiding Plagiarism
• Return to Full Research Guides List

6 th  Edition vs. 7 th  Edition

The most common APA versions used are the 6 th  and 7 th  editions. They have distinct differences, so make sure you confirm which version your professor requires.

APA 6 & 7 Comparison Tables  by Walden University.

How to Cite Using APA Style

Developed by the American Psychological Association  (APA), the APA style is widely used in the social science, management, humanities, and natural sciences.

Style and Grammar Guidelines - Reference Examples  from the APA offers a handy introduction to citing in APA format. Scroll down to find examples of correct citations for different types of sources.

The APA Style Blog can help you with tough citation questions.

In-text Citation

The in-text component of APA citation includes two main elements: the author's last name and the year of the publication (Ross, 1997), and a third: the page number, whenever quoting directly or paraphrasing a specific section of the text (Ross, 1997, p. 2). For more than one author, list the names in the order they appear in the source (it may not be in alphabetical order). 

Reference List 

The list of references on your paper's last page is titled "References" and should be arranged in alphabetical order by first authors' last names. 

If date is unknown use: (n.d.)

• APA Basic Tutorial A free tutorial for those who are new to APA style created by the American Psychological Association.
• APA Inclusive Language Guide, 2nd edition The guide is written to raise awareness, direct learning, and support the use of culturally sensitive terms and phrases that center the voices and perspectives of those who have been historically marginalized or stereotyped. The guide also explains the origins of problematic terms and phrases and offers suitable, more contemporary alternatives. The 2nd edition changes reflect our assessment of the current research at the time of publication and include additional guidance and more comprehensive definitions concerning gender-inclusive pregnancy-related language, neurodiversity, religious discrimination, and weight stigma. We also updated our guidance around avoiding conversational language that may contribute to microaggressions. However, this guide is neither exhaustive nor definitive because language evolves over time.
• Citation Style: APA 7th Edition: Frequently Asked Questions A FAQ for the APA 7th edition, created by the Keuka College Library.
• Purdue OWL APA Style Learn how to use the American Psychological Association (APA) citation and format style. This site contains resources on in-text citation and the References page, as well as APA sample papers, slide presentations, and the APA classroom poster.
• << Previous: AMA
• Next: ASA >>
• Last Updated: Apr 25, 2024 8:39 AM
• URL: https://lbbl.nsu.edu/guide/citing_sources

How To Cite a Research Paper: MLA, APA, and Chicago Style

• Posted on January 25, 2022

When you’re writing a research paper, you’ll use a variety of sources to find information. You might find that you end up using other people’s research papers as sources of information for your own work. You need to know how to cite a research paper properly.

Using text citations tells readers where you got your information, and help build a sense of trust, allowing the reader to feel confident that you haven’t falsified the information. You have to prove that you’ve done the research and found data to back up the claims you’re making.

Writing a paper without giving credit to people whose work you’re using is plagiarism. Unless you’re citing a direct quote you want to change the language enough, by putting the quote in your own words, so it sounds like original content. Quetext’s plagiarism checker  helps you search for similar content across the web so you can turn in a completely original paper.

Whether you’re submitting a research paper to school or for publication in a peer-reviewed journal, you’re required to cite your sources. Editors often reread the work of writers and researchers to ensure the information is factual. A teacher or professor will definitely check that your sources are accurate, so using tools like Quetext will help avoid unintentional plagiarism errors or wrongfully cited information.

Why Text Citations are Important

If you don’t have sources to back up your research, others might accuse you of spreading false information or plagiarism. Any journal publishing papers should verify what they’re printing, but ultimately, as the author, the buck stops with you.

In general, it’s a kindness to cite your sources. The people who created them did a lot of work, so it’s wrong to claim ownership of their ideas and information. But it’s also an ethical issue that can have major repercussions.

There have been cases where researchers  make up information  or falsify their sources and must face the consequences. People depend on factual information and don’t react well when they realize you lied to them or falsely paraphrase information.

That’s why it’s common knowledge to write a well-researched paper with text citations. If anyone claims your information is incorrect, you can point them to the source where you found the data. This doesn’t guarantee that the information you cited is correct, but you’ll be able to provide readers with a source of where you gathered your information.

When you’re citing other people’s research papers, make sure the source is legitimate. You should only use peer-reviewed journals so you know the article has gone through edits and fact-checking. Something identified as a research paper that is only on a blog or message board isn’t always a reliable source.

Many students like to use  Wikipedia  because there’s so much information available from one source. However, Wikipedia allows users to edit the information. What you read in a specific entry might not be true. It’s best to scroll down to the works cited and go to the original source yourself. If you can’t find a reliable, original source for the information, you shouldn’t use it.

Using the Various Citation Styles

The information used in any citation is basically the same across each style guide. The formatting and order of some elements may vary, so it’s important to know the difference between Modern Language Association (MLA), American Psychological Association (APA), and Chicago Styles.

The style you use depends on what type of writing you’re doing. All will use these basic elements in some form or another:

Source name

Volume and edition

Publication date

Page numbers

Publisher name

City and country of the publisher

URL and DOI for web pages and digital sources

The date you accessed the material

In addition to a reference list at the end of your work, you’ll also use in-text citations. Whenever you reference an idea or data that isn’t yours, you cite it. Each style has different types of in-text citations as well. Read on to find out about each citation format.

You’ll likely use the  MLA citation guide  if you’re writing papers in the humanities, such as for language arts, literary criticism, cultural studies, and more. The current edition of the MLA Handbook is the ninth because the style constantly evolves. As new technology creates new potential sources, MLA adds information to help students and researchers cite everything correctly.

The MLA Handbook has instructions on how to cite song lyrics, social media posts, and digital images, along with all of the standard research outlets. The book also gives detailed information on how to cite a research paper.

The MLA Handbook includes information about how to format your reference page. Use a 12-pt standard font like Times New Roman, so the text in italics is clearly different from the regular font. Center the title, Works Cited, at the top of the page. Your last name and page number are in the top right corner, and the reference page always comes at the end of your document.

Alphabetize citations according to the last name of the author. Left-align the citations and double-space them with no extra lines between each entry. When a citation goes beyond a single line, use a hanging indent to format it correctly. This lets the reader know it’s still the same citation continuing on.

Now that you know the basic format for the Works Cited page read on to find out how to cite a research paper for inclusion on this list.

Citing a Research Paper in MLA Style

When you’re citing a research paper in MLA style, you start with the author’s full name, putting the last name of the author first, followed by the title of the research paper in quotation marks. Next comes the the title of the journal that published the paper in italics, followed by the volume number, issue number, and date of publication.

You’ll also include the page number since the paper is in a journal with many pages. If you found the source online, include the digital object identifier or DOI. The DOI is a way to give a document a permanent web address so people reading your work can easily find the source.

MLA format also asks you to include the date you accessed online materials. Doing so gives your reader more information about when you read the research if it changed since that date. Here is an example of a research paper citation in MLA style:

Writer, Maria. “My Research Paper.” Research Journal, vol 3, no. 4, 2020, pp. 7-9. doi:12.34/mfs.12.34. Accessed 13 March 2021.

If the work wasn’t published online, you could stop your citation after the page numbers.

Sometimes you might find research papers that aren’t published in a scholarly journal. You can still use those in your work, but the MLA citation will look different. You’ll still put the last name of the author first, but instead of putting the title of the research paper in quotation marks, you’ll put it in italics.

Here is an example of an unpublished research paper citation in MLA style:

Writer, Maria. My Research Paper. 2020, http://websiteused.com . Accessed 13 March 2021.

These two examples show you how to document the source on your Works Cited page. In-text citations look different.

In-Text Citations for a Research Paper in MLA Style

When you’re working with the MLA format, an in-text reference requires a parenthetical citation.

If you refer to someone else’s research in a sentence, either with a direct quote or by paraphrasing, you need to give that author credit. At the end of the sentence where you use the information, you’ll put the author’s information in parenthesis and then put the sentence’s ending punctuation.

You use the author’s last name and the page number where you found the information for in-text citations. Then anyone reading your work can go to your Works Cited page, find the entry by the author’s last name, and access the document themselves. The page number directs them to where you got the specific information, so they don’t have to read the whole paper to find it. Here is an example of an in-text citation in MLA style:

Over 80% of the city’s garbage ended up in the ocean (Writer, 8).

You might mention the author’s name in your sentence. In that case, the parenthetical citation only needs to have the page numbers for reference. Here is an example:

According to Maria Writer, over 80% of the city’s garbage went into the ocean (8).

Researchers in the social science field, like sociology, anthropology, and psychology, use the  APA style  in their work. Like the MLA Handbook, the Publication Manual of the American Psychological Association has gone through changes over the years. It’s currently on the 7th edition.

In addition to helping you understand how to cite research, the Publication Manual of the American Psychological Association has information about how to format your paper to include tables, figures, and headings that often accompany scientific journal articles.

The Publication Manual of the American Psychological Association also tells you how to format your reference page. In MLA style, this is the Works Cited page. For APA style, it’s either the Reference List or Reference Page.

This page uses the same font style as the rest of the paper but starts on its own page with a number in the top right corner. The title of the page is bold and centered at the top and should simply read “References.”

List citations in alphabetical order by author’s last name regardless of the type of source. Each citation is double-spaced and has a hanging indent if it goes beyond one line.

Now that you understand how to properly format your APA reference page, learn how to cite a research paper to include on the list.

Citing a Research Paper in APA Style

When you use a research paper in your work, you need to include it on your APA references page at the end of your document.

An APA citation includes the same information as the MLA format but in a different order. The citation starts with the author’s last name but only uses their first initial. Then comes the year of publication in parenthesis.

The paper’s title follows, then the title of the journal in italics. You also include the journal volume, issue number, and page numbers. As with MLA citations, include a DOI if you found the research paper online. Here is an example of a published research paper cited in APA format:

Writer, M. (2020). My Research Paper. Research Journal, 3(4), 7-9. doi:12.34/mfs.12.34

If the paper isn’t published in a journal, you can still use it in your work with a proper citation. Here is an example:

Writer, M. (2020). My Research Paper [PDF]. Retrieved from http://websiteused.com

In-Text Citations for a Research Paper in APA Style

In-text citations in the APA format differ from MLA style. You still put it in parenthesis, but you include different information. For APA parentheticals, include the author’s last name and the paper’s year of publication. This method applies when you’re summarizing or paraphrasing the author’s idea. Here is an example of an in-text citation for a research paper in APA style:

Over 80% of the city’s garbage went into the ocean (Writer, 2020).

If you’re using a direct quote from the work you need to include the page number so the reader can find the quotation. Here is an example:

Maria Writer said, “Over 80% of the city’s garbage is going into the ocean” (2020, p. 8).

Chicago Style

Chicago Style  got its name from the University of Chicago, where the style originated. Writers use this format for works in the field of history, but you can also use it for the sciences, social sciences, and humanities.

MLA style has a Works Cited page, APA has References, and Chicago Style differs because it includes a Bibliography. The page comes at the end of your work with a page number in the top right corner. The title, “Bibliography,” is bold and centered at the top.

You will single-space your citations, but you’ll add an extra line between each entry. As with the other reference pages, you’ll left-align the work and use a hanging indent when a citation continues onto a second line.

Having an overview of how to format the bibliography will help you understand the citation styles for a research paper.

Citing a Research Paper in Chicago Style

Citations in Chicago Style are a mix of MLA and APA formats. It’s easiest to follow this template:

Writer, Maria. 2020. “My Research Paper.” Research Journal 3 (4): 7-9. doi:12.34/mfs.12.34.

As with other styles, you can reference an unpublished research paper as a document. Here is an example:

Writer, Maria. 2020. My Research Paper. PDF. http://websiteused.com .

In both instances, if there are multiple authors for a paper, list the rest of the authors in normal format. For example:

Author, Alan, Stanley Sample, and Maria Writer. 2020. “My Research Paper.” Research Journal 3 (4): 7-9. doi:12.34/mfs.12.34.

In-Text Citations for a Research Paper in Chicago Style

An in-text citation in Chicago Style is much simpler than both MLA and APA formats. You only need to include the last name of the author and year of publication in parenthesis with no comma in between them. For example:

Almost 80% of the city’s garbage goes into the ocean (Writer 2020).

You’ll include the page number for specificity if you’re quoting the author. Here’s an example:

Maria Writer said, “Over 80% of the city’s garbage is going into the ocean” (2020, 8).

You can also use endnotes in Chicago Style. A citation refers the reader to your source, but an endnote includes a bit of an explanation of why you used it. The information included in an endnote would disrupt the flow of your paper, but it’s still something you want the reader to know.

Make Text Citations Easy

Knowing when you need to cite a source helps you manage your research. Anytime you find information that you’re going to paraphrase, summarize, or quote in your work, you need to cite the source. The full citation will go on your reference page, but you’ll need an in-text citation where you use the information in your paper.

When you’re stating something that is  common knowledge , there’s no need to make a citation. Common knowledge is something that your reader would believe without needing proof. You can check if something is common knowledge by searching for it and finding it mentioned, without a citation, in at least five sources.

Once you learn the basics about citing a research paper in MLA, APA, and Chicago Styles, you’ll feel more confident in your work. The important thing is to pay attention to small details, like capitalization, italics and the use of abbreviations. But there’s no need to do it all on your own—Quetext has a  citation assistant  waiting to help. Give Quetext citation generator a try on your next project.

Sign Up for Quetext Today!

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APA Style Guides, 7th edition

• Style Guide, citing in APA 7th edition This guide includes citation examples for a variety of sources, information on in-text citations, and a sample reference list.
• APA 7 for Business This is a continuously updated document created by business librarians across the US to give citation examples for common business databases (Mintel, Business Source Premier, IBIS, etc.) and documents (reports, analysis, etc.).
• Sample Student Paper 7th edition From APA Style Blog

View the   APA Style website  for additional style and grammar guidelines.

Basic APA Formatting Guidelines 

• Reference list entries are alphabetized by author’s last name or equivalent.
• Reference lists are doubled spaced with a hanging indent after the first line of each entry
• References (in bold) should appear at the top center of the page.
• When referring to books, chapters, articles, or webpage titles , capitalize only the first letter of the first word of a title and subtitle, the first word after a colon or a dash in the title, and proper nouns
• Example: Last, F. M., Last, F. M., & Last, F. M.
• Parenthetical citation: “Direct quote” (Furlong, 2015, p.25).
• Narrative citation, if the author is mentioned in the sentence, place the year after the last name and the page number after the quote. Example: Furlong (2015) found that “direct quote” (p. 25)
• More guidelines can be found in the PDF Style Guide, citing in APA 7th edition . 

APA 7th Annotated Bibliography Examples

Journal article.

Alvarez, N. & Mearns, J. (2014). The benefits of writing and performing in the spoken word poetry community.  The Arts in Psychotherapy, 41 (3), 263-268.  https://doi.org/10.1016/j.aip.2014.03.004 Prior research has shown narrative writing to help with making meaning out of trauma. This article uses grounded theory to analyze semi-structured interviews with ten spoken word poets.  Because spoken word poetry is performed live, it creates personal and community connections that enhance the emotional development and resolution offered by the practice of writing. The findings are limited by the small, nonrandom sample (all the participants were from the same community).

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Types of APA Papers

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Copyright ©1995-2018 by The Writing Lab & The OWL at Purdue and Purdue University. All rights reserved. This material may not be published, reproduced, broadcast, rewritten, or redistributed without permission. Use of this site constitutes acceptance of our terms and conditions of fair use.

Note:  This page reflects the latest version of the APA Publication Manual (i.e., APA 7), which released in October 2019. The equivalent resource for the older APA 6 style  can be found here .

There are two common types of papers written in fields using APA Style: the literature review and the experimental report. Each has unique requirements concerning the sections that must be included in the paper.

Literature review

A literature review is a critical summary of what the scientific literature says about your specific topic or question. Often student research in APA fields falls into this category. Your professor might ask you to write this kind of paper to demonstrate your familiarity with work in the field pertinent to the research you hope to conduct.

A literature review typically contains the following sections:

• Introduction section
• List of references

Some instructors may also want you to write an abstract for a literature review, so be sure to check with them when given an assignment. Also, the length of a literature review and the required number of sources will vary based on course and instructor preferences.

NOTE: A literature review and an annotated bibliography are not synonymous. If you are asked to write an annotated bibliography, you should consult the Publication Manual of the American Psychological Association for the APA Format for Annotated Bibliographies.

Experimental report

In many of the social sciences, you will be asked to design and conduct your own experimental research. If so, you will need to write up your paper using a structure that is more complex than that used for just a literature review. We have a complete resource devoted to writing an experimental report in the field of psychology here .

This structure follows the scientific method, but it also makes your paper easier to follow by providing those familiar cues that help your reader efficiently scan your information for:

• Why the topic is important (covered in your introduction)
• What the problem is (also covered in your introduction)
• What you did to try to solve the problem (covered in your methods section)
• What you found (covered in your results section)
• What you think your findings mean (covered in your discussion section)

Thus an experimental report typically includes the following sections.

• Introduction
• Appendices(if necessary)
• Tables and/or figures (if necessary)

Make sure to check the guidelines for your assignment or any guidelines that have been given to you by an editor of a journal before you submit a manuscript containing the sections listed above.

As with the literature review, the length of this report may vary by course or by journal, but most often it will be determined by the scope of the research conducted.

Other papers

If you are writing a paper that fits neither of these categories, follow the guidelines about General Format , consult your instructor, or look up advice in the Publication Manual of the American Psychological Association .

When submitting a manuscript to a journal, make sure you follow the guidelines described in the submission policies of that publication, and include as many sections as you think are applicable to presenting your material. Remember to keep your audience in mind as you are making this decision. If certain information is particularly pertinent for conveying your research, then ensure that there is a section of your paper that adequately addresses that information.

U.S. Constitution.net

How to cite this site – the u.s. constitution online – usconstitution.net, how to cite this site.

Jump to: Citing the Constitution

It is very important when writing a paper for a school project (at any level, from elementary school to graduate school) to properly cite your sources. Where did you find your information? Citations are placed in the text as footnotes or endnotes, and/or placed at the end of your work in a bibliography. This page will handle a few different possibilities. The first is to answer the question “How do I cite a page on this site?” or, as I like to say, “How to cite the site.”

There are two main areas that someone might wish to cite on this site. The first is one of the pages found on the site. Several are simply electronic copies of historical documents, while others are research pages or opinion pages. You should be able to discern which is which pretty easily. Unless the information is a copy of a historical document, and unless otherwise noted, everything here is written by the Webmaster, Steve Mount.

Here is a standard way to cite an HTML page published on the Internet, according to the Columbia Guide to Online Style :

• Mount, Steve. “Constitutional Topic: Martial Law.” USConstitution.net. 30 Nov 2001. http://www.usconstitution.net/consttop_mlaw.html (3 Dec 2001)

Specifically, the data is as follows: Author, Title, Site, Modification Date (found at the bottom of every page), URL, and the date the page was accessed. The two dates are critical because of the changeable nature of the Web.

The next citation uses the APA format. This standard comes from the American Psychological Association, and is often used in psychology and other social sciences:

• Mount, S. (2010). Constitutional topic: due process. Retrieved February 23, 2011 from http://www.usconstitution.net/consttop_duep.html

Specifically, the data is as follows: Author, Modification Year (found at the bottom of every page), page title, the date the page was accessed, and the URL.

Finally, the MLA style is often used. This style comes from The Modern Language Association. With this style, citations are noted in the text and full references are given in a Works Cited list at the end of the paper.

• Inline: (Mount)
• Works Cited: Mount, Steve. “Constitutional Topic: The Census.” USConstitution.net . 3 Jan. 2011. 27 Feb. 2011 .

Specifically, the data is as follows: Author, Title, Site, Modification Date, thee date the page was accessed, and URL.

The second source of information is this site’s Message Boards. The primary information available in the Message Boards is opinion. Because the opinions are those of the posters, the citation of a message needs to include the name or handle of the poster. Here is an example, in the Columbia Style, for a posting from the Classic Boards on this site:

• Ian. “Re: Question regarding Law.” 2 Dec 2001. USConstitution.net Q&A Board. http://www.usconstitution.net/cgi-bin/wwwbmsg.cgi?const&001280.wwb (3 Dec 2001)

The data is as follows: Poster, Subject, Date Posted, Board Name, URL, and date accessed.

All posts created after November 2003 used the new messaging software. Here is an example for a posting using the new software:

• Andy. “Re: Impeach Scalia?” 5 Feb 2004. Debate Archives. http://www.usconstitution.net/yabb/YaBB.cgi?board=debarch;action=display;num=1077548457 (25 Feb 2004)

Citing the U.S. Constitution

Another common question involves how to cite the Constitution itself. There are two forms, a long form and a short form. In a legal document, the short form will suffice in all instances, whereas in a non-legal paper, the long form should be used once, and the short form can be used thereafter.

• “The Constitution of the United States,” Article 1, Section 8, Clause 5.
• “The Constitution of the United States,” Amendment 5.

Short Form:

• U.S. Const. art. I, § 8, cl. 5.
• U.S. Const. am. 5.

In place of the “§” symbol, the abbreviation “sect.” can be used. In a paper dealing primarily with the Constitution, there is no need to mention “U.S. Const.”

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• Chicago Manual of Style Online, 17th edition
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• MLA Style Center
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Citation Management Software: EndNote, Zotero, Mendeley.  All of these programs can:

• store references in one place 
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• attach files to your references and more!

- How to use EndNote

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You can register for quarterly workshops from the  Library Events page .

If you have any questions, please contact the library's  bibliographic support team .

Short Video: Examining Citations (What is a citation and why is it important)

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