APA (7th ed.) Citation

Gregory, R. J. (1992). Psychological testing: History, principles, and applications (2. [printing].). Allyn and Bacon.

Chicago Style (17th ed.) Citation

Gregory, Robert J. Psychological Testing: History, Principles, and Applications. 2. [printing]. Boston u.a: Allyn and Bacon, 1992.

MLA (9th ed.) Citation

Gregory, Robert J. Psychological Testing: History, Principles, and Applications. 2. [printing]. Allyn and Bacon, 1992.