Cita APA (7th ed.)

Lefton, L. A. (1979). Psychology. Allyn and Bacon.

Cita Chicago (17th ed.)

Lefton, Lester A. Psychology. Boston: Allyn and Bacon, 1979.

Cita MLA (9th ed.)

Lefton, Lester A. Psychology. Allyn and Bacon, 1979.