APA (7th ed.) Citation

Corey, G., Corey, M. S., Corey, C., & Callanan, P. (2015). Issues and ethics in the helping professions (Ninth edition.). Brooks/Cole/Cengage Learning.

Chicago Style (17th ed.) Citation

Corey, Gerald, Marianne Schneider Corey, Cindy Corey, and Patrick Callanan. Issues and Ethics in the Helping Professions. Ninth edition. Australia: Brooks/Cole/Cengage Learning, 2015.

MLA (9th ed.) Citation

Corey, Gerald, et al. Issues and Ethics in the Helping Professions. Ninth edition. Brooks/Cole/Cengage Learning, 2015.