APA-Zitierstil (7. Ausg.)

Combs, A. W., Avila, D. L., & Purkey, W. W. (1972). Helping relationships: Basic concepts for the helping professions (4.print.). Allyn and Bacon.

Chicago-Zitierstil (17. Ausg.)

Combs, Arthur W., Donald L. Avila, und William W. Purkey. Helping Relationships: Basic Concepts for the Helping Professions. 4.print. Boston: Allyn and Bacon, 1972.

MLA-Zitierstil (9. Ausg.)

Combs, Arthur W., et al. Helping Relationships: Basic Concepts for the Helping Professions. 4.print. Allyn and Bacon, 1972.