APA (7th ed.) Citation

Aiken, L. R. (1988). Psychological testing and assessment (6th ed.). Allyn.

Chicago Style (17th ed.) Citation

Aiken, Lewis R. Psychological Testing and Assessment. 6th ed. Boston: Allyn, 1988.

MLA (9th ed.) Citation

Aiken, Lewis R. Psychological Testing and Assessment. 6th ed. Allyn, 1988.