Combs, A. W., Purkey, W. W., & Avila, D. L. (1978). Helping relationships: Basic concepts for the helping professions (2nd ed.). Allyn and Bacon.
Цитирование в стиле Чикаго (17-е изд.)Combs, Arthur W., William W. Purkey, и Donald L. Avila. Helping Relationships: Basic Concepts for the Helping Professions. 2nd ed. Boston: Allyn and Bacon, 1978.
Цитирование MLA (9-е изд.)Combs, Arthur W., et al. Helping Relationships: Basic Concepts for the Helping Professions. 2nd ed. Allyn and Bacon, 1978.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.