Gregory, R. J. (2007). Psychological testing: History, principles, and applications (5th. Edition). Pearson Education, Inc.
Chicago Style CitationGregory, Robert J. Psychological Testing: History, Principles, and Applications (5th. Edition). Pearson Education, Inc, 2007.
MLA CitationGregory, Robert J. Psychological Testing: History, Principles, and Applications (5th. Edition). Pearson Education, Inc, 2007.
Warning: These citations may not always be 100% accurate.