APA Citatie

Corey, M. S., & Marianne Schneider Corey; Gerald Corey. (2007). Becoming a helper. Belmont, CA: Thomson Higher Education.

Chicago Style citaat

Corey, Marianne Schneider, en Marianne Schneider Corey; Gerald Corey. Becoming a Helper. Belmont, CA: Thomson Higher Education, 2007.

MLA citatie

Corey, Marianne Schneider, en Marianne Schneider Corey; Gerald Corey. Becoming a Helper. Belmont, CA: Thomson Higher Education, 2007.

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