Papalia, D. E., Olds, S. W., & Feldman, R. D. (2004). A child's world: Infancy through adolescence (Updated ninth edition.). McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Papalia, Diane E., Sally Wendkos Olds, agus Ruth Duskin Feldman. A Child's World: Infancy Through Adolescence. Updated ninth edition. New York, NY: McGraw-Hill, 2004.
Lua MLA (8ú heag.)Papalia, Diane E., et al. A Child's World: Infancy Through Adolescence. Updated ninth edition. McGraw-Hill, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.