Citazione Stile APA (7a Edizione)

Corey, G., Corey, M. S., & Callanan, P. (1993). Issues and ethics in the helping professions. Brooks/Cole Pub.

Citazione stile Chigago Style (17a edizione)

Corey, Gerald, Marianne Schneider Corey, e Patrick Callanan. Issues and Ethics in the Helping Professions. Pacific Grove, CA: Brooks/Cole Pub, 1993.

Citatione MLA (9a ed.)

Corey, Gerald, et al. Issues and Ethics in the Helping Professions. Brooks/Cole Pub, 1993.