APA (7th ed.) Citation

Sundel, S. S., & Sundel, M. (1993). Behavior modification in the human services: A systematic introduction to concepts and applications (3rd ed.). Sage Publications.

Chicago Style (17th ed.) Citation

Sundel, Sandra Stone, and Martin Sundel. Behavior Modification in the Human Services: A Systematic Introduction to Concepts and Applications. 3rd ed. Newbury Park, Calif: Sage Publications, 1993.

MLA (9th ed.) Citation

Sundel, Sandra Stone, and Martin Sundel. Behavior Modification in the Human Services: A Systematic Introduction to Concepts and Applications. 3rd ed. Sage Publications, 1993.