APA (7th ed.) Zitazioa
Corey, G., Callanan, P., & Corey, M. S. (1998). Issues and ethics in the helping professions (5th ed.). Brooks\Cole.
Chicago Style (17th ed.) Zitazioa
Corey, Gerald, Patrick Callanan, eta Marianne Schneider Corey. Issues and Ethics in the Helping Professions. 5th ed. Australia: Brooks\Cole, 1998.
MLA (9th ed.) Zitazioa
Corey, Gerald, et al. Issues and Ethics in the Helping Professions. 5th ed. Brooks\Cole, 1998.
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