The authors of the 7th edition of the Publication Manual of the American Psychological Association (2020) advise writers to:

• Cite the work of those individuals whose ideas, theories, or research have directly influenced your work.
• Provide documentation for all facts and figures that are not common knowledge.
• Use the author-date system to cite references. This means each work used in a paper has two parts: an in-text citation and a corresponding reference list entry at the end of the paper. 

For more detailed information, please see Publication manual of the American Psychological Association : the official guide to APA style. (Seventh edition.). (2020). Washington, DC: American Psychological Association, Chapters 8-10. 

This guide provides templates as well as examples for citing different types of sources in APA. Use the tabs at the top of this guide to find general guidance and examples for:

• In-text citations
• Reference entries
• Paper formatting

APA Manual 7th edition: The most notable changes by Scribbr.