APA (7e ed.) Bronvermelding

Corey, M. S., & Corey, G. (1993). Becoming a helper (2nd ed.). Brooks/Cole Pub. Co..

Chicago (17e ed.) Bronvermelding

Corey, Marianne Schneider, en Gerald Corey. Becoming a Helper. 2nd ed. Pacific Grove, Calif.: Brooks/Cole Pub. Co., 1993.

MLA (8e ed.) Bronvermelding

Corey, Marianne Schneider, en Gerald Corey. Becoming a Helper. 2nd ed. Brooks/Cole Pub. Co., 1993.