Corey, G., & Corey, M. S. (1993). Issues and ethics in the helping professions. Brooks/Cole.
Lua i Stíl Chicago (17ú heag.)Corey, Gerald, agus Marianne S. Corey. Issues and Ethics in the Helping Professions. California: Brooks/Cole, 1993.
Lua MLA (9ú heag.)Corey, Gerald, agus Marianne S. Corey. Issues and Ethics in the Helping Professions. Brooks/Cole, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.