Combs, A. W., Avila, D. L., & Purkey, W. W. (1971). Helping relationships: Basic concepts for the helping professions. Allyn and Bacon.
Style de citation Chicago (17e éd.)Combs, Arthur W., Donald L. Avila, et William W. Purkey. Helping Relationships: Basic Concepts for the Helping Professions. Boston: Allyn and Bacon, 1971.
Style de citation MLA (9e éd.)Combs, Arthur W., et al. Helping Relationships: Basic Concepts for the Helping Professions. Allyn and Bacon, 1971.
Attention : ces citations peuvent ne pas être correctes à 100%.