APA (7e ed.) Bronvermelding

Shaffer, D. R. (2002). Developmental psychology: Childhood and adolescence (6th ed.). Wadsworth Thomson Learning.

Chicago (17e ed.) Bronvermelding

Shaffer, David R. Developmental Psychology: Childhood and Adolescence. 6th ed. Belmont, CA: Wadsworth Thomson Learning, 2002.

MLA (9e ed.) Bronvermelding

Shaffer, David R. Developmental Psychology: Childhood and Adolescence. 6th ed. Wadsworth Thomson Learning, 2002.