APA (7th ed.) Citation

Gregory, R. J. (2004). Psychological testing: History, principles, and applications (4th ed.). Pearson/A and B.

Chicago Style (17th ed.) Citation

Gregory, Robert J. Psychological Testing: History, Principles, and Applications. 4th ed. Boston: Pearson/A and B, 2004.

MLA (9th ed.) Citation

Gregory, Robert J. Psychological Testing: History, Principles, and Applications. 4th ed. Pearson/A and B, 2004.