Cita APA (7a ed.)

Sundel, M., & Sundel, S. S. (1975). Behavior modification in the human services. Wiley.

Cita Chicago Style (17a ed.)

Sundel, Martin, y Sandra Stone Sundel. Behavior Modification in the Human Services. New York: Wiley, 1975.

Cita MLA (8a ed.)

Sundel, Martin, y Sandra Stone Sundel. Behavior Modification in the Human Services. Wiley, 1975.