APA (7th ed.) Citation

Papalia, Duskin, & Olds. (2002). A childs world: Infancy through adolescence (9th ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Papalia, Duskin, and Olds. A Childs World: Infancy Through Adolescence. 9th ed. Boston: McGraw-Hill, 2002.

MLA (8th ed.) Citation

Papalia, et al. A Childs World: Infancy Through Adolescence. 9th ed. McGraw-Hill, 2002.