Cita APA (7a ed.)
Lefton, L. A. (1994). Psychology (5th.ed.). Allyn and Bacon.
Cita Chicago Style (17a ed.)
Lefton, Lester A. Psychology. 5th.ed. Boston: Allyn and Bacon, 1994.
Cita MLA (9a ed.)
Lefton, Lester A. Psychology. 5th.ed. Allyn and Bacon, 1994.
Precaución: Estas citas no son 100% exactas.