APA Edition Citation

Sundel, M., & Sundel, S. S. (2018). Behavior change in the human services: Behavioral and cognitive principles and applications (Sixth edition.). Sage.

Chicago Edition Citation

Sundel, Martin, and Sandra Stone Sundel. Behavior Change in the Human Services: Behavioral and Cognitive Principles and Applications. Sixth edition. California: Sage, 2018.

MLA Edition Citation

Sundel, Martin, and Sandra Stone Sundel. Behavior Change in the Human Services: Behavioral and Cognitive Principles and Applications. Sixth edition. Sage, 2018.