Cita APA (7a ed.)

Papalia, D. E., & Olds, S. W. (1993). A child's world: Infancy through adolescence (6th ed.). McGraw-Hill.

Cita Chicago Style (17a ed.)

Papalia, Diane E., y Sally Wendkos Olds. A Child's World: Infancy Through Adolescence. 6th ed. New York [etc.]: McGraw-Hill, 1993.

Cita MLA (9a ed.)

Papalia, Diane E., y Sally Wendkos Olds. A Child's World: Infancy Through Adolescence. 6th ed. McGraw-Hill, 1993.