APA (7e ed.) Bronvermelding

Sigelman, C. K., & Rider, E. A. (2003). Life-span human development (4th ed.). Thomson/Wadsworth.

Chicago (17e ed.) Bronvermelding

Sigelman, Carol K., en Elizabeth A. Rider. Life-span Human Development. 4th ed. Australia: Thomson/Wadsworth, 2003.

MLA (9e ed.) Bronvermelding

Sigelman, Carol K., en Elizabeth A. Rider. Life-span Human Development. 4th ed. Thomson/Wadsworth, 2003.