APA (7th ed.) Citation
Gregory, R. J. (2015). Psychological testing: History, principles, and applications (7th ed.). Pearson.
Chicago Style (17th ed.) Citation
Gregory, Robert J. Psychological Testing: History, Principles, and Applications. 7th ed. Harlow, England: Pearson, 2015.
MLA (9th ed.) Citation
Gregory, Robert J. Psychological Testing: History, Principles, and Applications. 7th ed. Pearson, 2015.
Warning: These citations may not always be 100% accurate.