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Citations: APA Citation

A guide to citations in APA, MLA, and Chicago Style.

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CITATIONS 

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Looking for APA 7th edition help? You can access our quick reference guide below.

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What's New in APA 7?

  • The publisher location is no longer required. Thus, "New York: Columbia University Press"  is now just “Columbia University Press”.
  • The first in-text citation of a work by more than two authors may list only the first author, followed by “et al.”
  • The reference section lists up to 20 authors for a single work.
  • The singular “they” or “their” is endorsed as a gender-neutral pronoun.
  • Website URLs no longer need to be preceded with “Retrieved from:”.
  • Journal DOIs are now displayed as a doi.org URL instead of with the “DOI:” prefix. For example: “DOI: 10.1109/5.771073” becomes “https⁚//doi.org/10.1109/5.771073”
  • Journal articles from a database but without a DOI end after the page numbers. They no longer include the database name or URL.
  • Ebooks no longer require the type of ebook to be listed (e.g. PDF, Kindle etc)
  • The running head rules are “simplified,” and running heads are not required for student papers

APA in-text citations

For a primer on APA in-text citations (the citations within your paper), check out OWL Purdue's page on Citation Basics and then explore their page on Author/Authors.

One of the main quirks of APA style concerns how you format in-text citations based on the number of authors for that resource (journal, book, website, etc.). The table below provides a quick summary of the main formatting variations.

In-text citations:

# of authors First citation in paper Subsequent citations in paper
1-2 authors: Smith (2016) Smith (2016)
3 or more authors: Smith, et al. (2016) Smith et al. (2016)
     

Examples

 

Reference Examples

Note: References should be in alphabetical order by author and have hanging indents. 

  1. Book with One Author

Youdin, R. (2016). Psychology of aging 101. Springer Publishing Company.

  • APA has dropped the need to include the location of publication.
  1. Journal Article from Database with doi

Banzhaf, S., Ma, L., & Timmins, C. (2019). Environmental justice: The economics of race, place, and pollution. The Journal of Economic Perspectives, 33(1), 185-208. https⁚//doi.org/10.1257/jep.33.1.185

  • Journal dois are now displayed as a doi.org URL instead of with the “DOI:” prefix.
  • Always included the doi, if available, no matter what the source of the article.
  1. Journal Article from Database without doi

Pascual-Leone, A., Brasil-Neto, J., Valls-Solé, J., Cohen, L. G., & Hallett, M. (1992). Simple reaction time to focal transcranial magnetic stimulation. Comparison with reaction time to acoustic, visual and somatosensory stimuli. Brain: A Journal of Neurology, 115(1), 109-122. 

  • The reference section lists up to 20 authors for a single work.
  • Journal articles from a database but without a DOI end after the page numbers; they no longer include the database name or URL.
  1. Article from Online Magazine or Newspaper

Merrick, A. (2014, April 1). Marketing “real” bodies. The New Yorker.  https://www.newyorker.com/business/currency/marketing-real-bodies.

  • Website URLs no longer need to be preceded with “Retrieved from:”.
  1. Work from a Website with Author

Adams, J. & Clemens, L. (2017, August). Stopping the cycle of dead zones in the Gulf of Mexico and beyond. The Nature Conservancy. https:// global.nature.org/ content/stopping-the-cycle-of-dead-zones-in-the-gulf-of-mexico-and-beyond?intc=nature.hp.sp1

  • Website URLs no longer need to be preceded with “Retrieved from:”
  • Include a retrieved date, if there is no date for the work and it is the kind of page designed to change over time (e.g. census data)
  • When the author and the site name are the same, omit the site name from the source element.

6. Work from a Website No Author

Big ideas for better schools: Ten ways to improve education. (2005, August 11). Edutopia. https://www.edutopia.org/big-ideas

  • If a work on a website has no author, consider first if it is a source worthy of using in your research.
  • Put the title first, followed by a period and alphabetize by the first significant word of the title (i.e., ignore A, An, or The at the beginning of the title). Alphabetize numbers as if they were spelled out (e.g., 200 would come after Tuchman, B.)

In-Text Citations

1. Book with One Author

(Youdin, 2016, p. 56)

2. Journal Article with Two Authors

(Banzhaf & Timmins, 2019, p. 190) 

  • For works with one or two authors, include the author name(s) in every citation.
  • In parenthetical citations, use an ampersand (&) between the names, but in a narrative citation spell ou the word "and."

3. Journal Article with Three or More Authors

(Pascual-Leone, et al.,1992, p. 120)

  • For a work with three or more authors, include the name for the first author followed by et al. in every citation, including the first.

4. Work from a Website with No Author

("Big Ideas for Better Schools," 2005)

  • If a work on a website has no author, consider first if it is a source worthy of using in your research.
  • Use a shortened from of the title if it is long. 
  • Use title capitalization in the in-text citation, even if you use sentence case in the reference list entry. 
  • Use italics for book titles and quotation marks for article titles. 

APA papers can be tricky to format.

Are you new to APA paper formatting and love videos? Check out Owl Purdue's video on formatting papers here.
*Note: not all college papers require an abstract page. Consult with your professor regarding their preference. 

The core authority on APA paper formatting is the APA Style Manual. You can find a sample paper on page 41 of the Manual. 

If you don't have immediate access to the Manual, check out the sample paper online here via APA Style.

OWL Purdue, also has a great sample paper with clear explanations. It can be found here

Headings

Within the body of the paper, it is also important to pay attention to heading levels. Owl Purdue has a great page that talks about headings within your paper. You can check it out here

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