Dyfyniad APA
Papalia, D. E., Olds, S. W., & Feldman, R. D. (2002). A child's world: Infancy through adolescence (9th ed.). McGraw-Hill.
Dyfyniad Arddull Chicago
Papalia, Diane E., Sally Wendkos Olds, and Ruth Duskin Feldman. A Child's World: Infancy Through Adolescence. 9th ed. Boston: McGraw-Hill, 2002.
Dyfyniad MLA
Papalia, Diane E., et al. A Child's World: Infancy Through Adolescence. 9th ed. McGraw-Hill, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.