Gregory, R. J. (2015). Psychology testing: History, principles, and applications (7th ed.). New York: Pearson.
Chicago Style CitationGregory, Robert J. Psychology Testing: History, Principles, and Applications. 7th ed. New York: Pearson, 2015.
MLA CitationGregory, Robert J. Psychology Testing: History, Principles, and Applications. 7th ed. New York: Pearson, 2015.
Warning: These citations may not always be 100% accurate.