APA Citatie

Corey, M. S. 1., & Corey, G. (2007). Becoming a helper (5th ed.). Belmont, CA: Thomson Higher Education.

Chicago Style citaat

Corey, Marianne Schneider 1942-, en Gerald Corey. Becoming a Helper. 5th ed. Belmont, CA: Thomson Higher Education, 2007.

MLA citatie

Corey, Marianne Schneider 1942-, en Gerald Corey. Becoming a Helper. 5th ed. Belmont, CA: Thomson Higher Education, 2007.

Let op: Deze citaties zijn niet altijd 100% accuraat.