Cita APA

Walker, J. E., & Shea, T. M. (1976). Behavior modification: A practical approach for educators. Saint Louis: C.V. Mosby.

Citación estilo Chicago

Walker, James E., y Thomas M. Shea. Behavior Modification: A Practical Approach for Educators. Saint Louis: C.V. Mosby, 1976.

Cita MLA

Walker, James E., y Thomas M. Shea. Behavior Modification: A Practical Approach for Educators. Saint Louis: C.V. Mosby, 1976.