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Citation Toolkit: APA Style

APA Handbook Available in the PCC Library

RefWorks

You can use a tool called RefWorks to help manage your research and citations. Learn more in the Citing and Copyright module in the Library Classroom.

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American Psychological Association (APA) Style

The American Psychological Association (APA) style is often used by people in the sciences, such as medicine, biology, and psychology. Always check with your professor on what citation style they would like you to use.

When writing, document all information and ideas gained from outside sources. You do this to

  • credit your sources and avoid plagiarism,
  • support your arguments with information from experts in the field, and
  • share source materials with readers.

Your essay should be typed, double-spaced on standard-sized paper (8.5" x 11") with 1" margins on all sides. As long as the same font is used consistently throughout the text of the paper, a variety of fonts are acceptable. Use a clear font that is highly readable.

In-text Citations

APA in-text citations use parenthesis whenever a sentence uses a quotation or paraphrase from an outside source. Most times, the in-text citation goes at the end of a sentence before the period. Whether you use a direct quotation or paraphrase, you must include an in-text citation and the correct information in your References, including a matching last name and publication year..

In-text citations in APA require the author's last name, comma, and the year of publication for the source. When there is no author, use the first word or two of the title in the parentheses. If there is no date, use the abbreviation "n.d.".

If you mention the author's last name or publication year previously in the sentence, it does not have to be included in the in-text citation.

Example:

"In a discussion of travel methods in the Middle Ages, a comparison was made of wheeled conveyances” (Smith, 2021).

Research by Smith discussed how people traveled in the Middle ages and compared various transports with wheels (2021).

“Mood management activities, e.g., exercise, volunteering, are more often engaged in by sad than happy people” (Wegener, n.d.).

Source: Adapted from Purdue OWL: In-text Citations: The Basics