Cita APA (7a ed.)

Liberman, R. P. (1972). A guide to behavioral analysis and therapy. Pergamon.

Cita Chicago Style (17a ed.)

Liberman, Robert Paul. A Guide to Behavioral Analysis and Therapy. New York [etc.]: Pergamon, 1972.

Cita MLA (9a ed.)

Liberman, Robert Paul. A Guide to Behavioral Analysis and Therapy. Pergamon, 1972.