Cita APA (7th ed.)

Papalia, D. E., Olds, S. W., & Feldman, R. D. (1998). A child's world: Infancy through adolescence (8th ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Papalia, Diane E., Sally Wendkos Olds, i Ruth Duskin Feldman. A Child's World: Infancy Through Adolescence. 8th ed. Boston: McGraw-Hill, 1998.

Cita MLA (8th ed.)

Papalia, Diane E., et al. A Child's World: Infancy Through Adolescence. 8th ed. McGraw-Hill, 1998.