Cita APA (7th ed.)

Papalia, D. E., Olds, S. W., & Feldman, R. D. (2004). A child's world: Infancy through adolescence (Updated ninth edition.). McGraw-Hill.

Cita Chicago (17th ed.)

Papalia, Diane E., Sally Wendkos Olds, i Ruth Duskin Feldman. A Child's World: Infancy Through Adolescence. Updated ninth edition. New York, NY: McGraw-Hill, 2004.

Cita MLA (8th ed.)

Papalia, Diane E., et al. A Child's World: Infancy Through Adolescence. Updated ninth edition. McGraw-Hill, 2004.