Thorpe, G. L., & Olson, S. L. (1997). Behavior therapy: Concepts, procedures, and applications (2nd ed.). Allyn & Bacon.
Cita Chicago (17th ed.)Thorpe, Geoffrey L., i Sheryl L. Olson. Behavior Therapy: Concepts, Procedures, and Applications. 2nd ed. Boston: Allyn & Bacon, 1997.
Cita MLA (9th ed.)Thorpe, Geoffrey L., i Sheryl L. Olson. Behavior Therapy: Concepts, Procedures, and Applications. 2nd ed. Allyn & Bacon, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.