Sundel, M., & Sundel, S. S. (2005). Behavior change in the human services: Behavioral and cognitive principles and applications (5th ed.). Sage Publications.
Цитирование в стиле Чикаго (17-е изд.)Sundel, Martin, и Sandra Stone Sundel. Behavior Change in the Human Services: Behavioral and Cognitive Principles and Applications. 5th ed. Thousand Oaks, Calif: Sage Publications, 2005.
Цитирование MLA (9-е изд.)Sundel, Martin, и Sandra Stone Sundel. Behavior Change in the Human Services: Behavioral and Cognitive Principles and Applications. 5th ed. Sage Publications, 2005.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.