Cita APA (7a ed.)
Lefton, L. A. (1997). Psychology (6th ed.). Kentucky State University.
Cita Chicago Style (17a ed.)
Lefton, Lester A. Psychology. 6th ed. Kentucky: Kentucky State University, 1997.
Cita MLA (9a ed.)
Lefton, Lester A. Psychology. 6th ed. Kentucky State University, 1997.
Precaución: Estas citas no son 100% exactas.