APA (7e ed.) Bronvermelding

Corey, G., Corey, M. S., & Corey, C. (2019). Issues & ethics in the helping professions (10e.). Cengage Learning.

Chicago (17e ed.) Bronvermelding

Corey, Gerald, Marianne Schneider Corey, en Cindy Corey. Issues & Ethics in the Helping Professions. 10e. Boston, MA, USA: Cengage Learning, 2019.

MLA (9e ed.) Bronvermelding

Corey, Gerald, et al. Issues & Ethics in the Helping Professions. 10e. Cengage Learning, 2019.