Cita APA (7th ed.)

Allen, B. P. (1994). Personality theories. Allyn and Bacon.

Cita Chicago (17th ed.)

Allen, Bem P. Personality Theories. Boston: Allyn and Bacon, 1994.

Cita MLA (9th ed.)

Allen, Bem P. Personality Theories. Allyn and Bacon, 1994.