APA Edition Citation

Robert J Gregory. (2011). Psychological testing: History, principles and applications. Allyn and Bacon.

Chicago Edition Citation

Robert J Gregory. Psychological Testing: History, Principles and Applications. Boston: Allyn and Bacon, 2011.

MLA Edition Citation

Robert J Gregory. Psychological Testing: History, Principles and Applications. Allyn and Bacon, 2011.

Warning: These citations may not always be 100% accurate.