Cita APA

Corey, G., Callanan, P., & Corey, M. S. (2003). Issues and ethics in the helping professions (6th ed.). Brooks/Cole/Thomson Learning.

Chicago Edition Citation

Corey, Gerald, Patrick Callanan, i Marianne Schneider Corey. Issues and Ethics in the Helping Professions. 6th ed. Australia ; Pacific Grove, CA: Brooks/Cole/Thomson Learning, 2003.

Cita MLA

Corey, Gerald, et al. Issues and Ethics in the Helping Professions. 6th ed. Brooks/Cole/Thomson Learning, 2003.