Answered By: Randy Miller
Last Updated: Sep 15, 2025     Views: 4

Using Citations in APA 7: Why Citations Matter

In academic writing, citations are required for any information, ideas, or wording that are not your own and are not considered “common knowledge.”

  • Citations show you have researched your topic.
  • Citations give credit to the original authors.
  • Citations help readers locate your sources.
  • Missing citations can lead to plagiarism, even if unintentional.

What Is Common Knowledge?

  • General Common Knowledge: Information widely known and easily found in multiple general sources.
    • Example: George Washington was the first president of the United States.
    • No citation is needed.
  • Field- or Region-Specific Knowledge: Information that is only well-known in a certain group, field, or place.
    • Example: Only about half of U.S. states have a law enforcement officer called a constable.
    • Because this may not be widely known, you should cite a source for the definition or the statistic to be safe.

Rule of Thumb: If in doubt, cite it.

Citation Checklist (APA 7)

1. Facts and Information

  • Did I cite every fact, statistic, or detail that is not common knowledge?
  • If it’s only common knowledge in a limited group or area, did I still cite it?

2. Ideas and Theories

  • Did I cite when summarizing, paraphrasing, or discussing someone else’s ideas or theories?

3. Direct Quotes

  • Did I put quotation marks around all direct quotes?
  • Did I include the author, year, and page number (or paragraph number for sources without pages)?

4. Paraphrasing

  • Did I truly put the idea into my own words instead of just changing a few words?
  • Did I still cite the original source?

5. Personal Communication

  • Did I cite interviews, emails, class lectures, or private correspondence as personal communication in the body of my paper?
    • Example: (J. Smith, personal communication, March 3, 2025)
  • Did I avoid listing personal communications in the References list (since readers cannot retrieve them)?

6. Cite Only What You Read

  • Am I citing the actual source I read, not just copying a citation I found in someone else’s work?
  • If Miller quotes Jones and I only read Miller, did I cite the Miller source I read (not copying Miller's citation of Jones)?
  • If I want to cite Jones directly, did I look up Jones’s original work myself?
  • Did I avoid copying reference list entries for sources I never personally consulted?

7. Reference List

  • Does every in-text citation (except personal communications) match a full reference?
  • Is the list in proper APA 7 style (alphabetical order, hanging indent, correct sentence case or title case, correct punctuation)?

8. Final Check

  • If I was unsure about whether to cite something, did I include a citation anyway?