Corey, G., & Corey, M. S. (1993). Issues and ethics in the helping professions. Brooks/Cole.
Tohutoru Kātū Chicago (17th ed.)Corey, Gerald, me Marianne S. Corey. Issues and Ethics in the Helping Professions. California: Brooks/Cole, 1993.
Tohutoro MLA (9th ed.)Corey, Gerald, me Marianne S. Corey. Issues and Ethics in the Helping Professions. Brooks/Cole, 1993.
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