Cita APA (7th ed.)

Corey, G., Callanan, P., & Corey, M. S. (2011). Issues and ethics in the helping professions (8th ed.). Brooks/Cole.

Cita Chicago (17th ed.)

Corey, Gerald, Patrick Callanan, i Marianne Schneider Corey. Issues and Ethics in the Helping Professions. 8th ed. Belmont: Brooks/Cole, 2011.

Cita MLA (9th ed.)

Corey, Gerald, et al. Issues and Ethics in the Helping Professions. 8th ed. Brooks/Cole, 2011.