Cita APA (7a ed.)

Aiken, L. R. (1991). Psychological testing and assessment (7th ed.). Allyn and Bacon.

Cita Chicago Style (17a ed.)

Aiken, Lewis R. Psychological Testing and Assessment. 7th ed. Boston [etc.]: Allyn and Bacon, 1991.

Cita MLA (9a ed.)

Aiken, Lewis R. Psychological Testing and Assessment. 7th ed. Allyn and Bacon, 1991.