Kaplan, R. M., & Saccuzzo, D. P. (2009). Psychological testing: Principles, applications, and issues (7th ed.). Wadsworth/Cengage Learning.
Chicago Style aipamenaKaplan, Robert Malcolm, and Dennis P. Saccuzzo. Psychological Testing: Principles, Applications, and Issues. 7th ed. Belmont, Calif: Wadsworth/Cengage Learning, 2009.
MLA aipamenaKaplan, Robert Malcolm, and Dennis P. Saccuzzo. Psychological Testing: Principles, Applications, and Issues. 7th ed. Wadsworth/Cengage Learning, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.