This guide contains examples of common citation formats in APA (American Psychological Association) Style, based on the seventh edition (2020) of the APA Publication Manual.
For information on the 6th edition, see the APA Quick Citation Guide 6th edition.
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Questions about APA Style? Ask a Librarian!
For more information about APA Style, use the following resources.
Print guide, available at many Penn State Libraries:
In addition to providing guidance on grammar, the mechanics of writing, and APA style, this manual offers an authoritative reference and citation system. It also covers the treatment of numbers, statistical and mathematical data, tables and figures.