Cita APA

Corey, G., Corey, M. S., & Callanan, P. (1988). Issues and ethics in the helping professions (3rd ed.). Brooks/Cole Pub. Co.

Citación estilo Chicago

Corey, Gerald, Marianne Schneider Corey, and Patrick Callanan. Issues and Ethics in the Helping Professions. 3rd ed. Pacific Grove, Calif: Brooks/Cole Pub. Co, 1988.

Cita MLA

Corey, Gerald, et al. Issues and Ethics in the Helping Professions. 3rd ed. Brooks/Cole Pub. Co, 1988.