Cita APA (7a ed.)

Roth, J., & Medcof, J. (1979). Approaches to psychology. Methuen.

Cita Chicago Style (17a ed.)

Roth, John, y John Medcof. Approaches to Psychology. Toronto: Methuen, 1979.

Cita MLA (9a ed.)

Roth, John, y John Medcof. Approaches to Psychology. Methuen, 1979.