Cita APA

Sundel, M. 1., & Sundel, S. S. 1. (1975). Behavior modification in the human services: A systematic inroduction to concepts and applications. New York: John Wiley & Sons.

Citación estilo Chicago

Sundel, Martin 1940-, y Sandra Stone 1948- Sundel. Behavior Modification in the Human Services: A Systematic Inroduction to Concepts and Applications. New York: John Wiley & Sons, 1975.

Cita MLA

Sundel, Martin 1940-, y Sandra Stone 1948- Sundel. Behavior Modification in the Human Services: A Systematic Inroduction to Concepts and Applications. New York: John Wiley & Sons, 1975.