Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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