Cita APA (7a ed.)
Papalia, D. E., & Olds, S. W. (1990). A child's world: Infancy through adolescence (5.vyd.). McGraw-Hill.
Cita Chicago Style (17a ed.)
Papalia, Diane E., y Sally Wendkos Olds. A Child's World: Infancy Through Adolescence. 5.vyd. New York: McGraw-Hill, 1990.
Cita MLA (9a ed.)
Papalia, Diane E., y Sally Wendkos Olds. A Child's World: Infancy Through Adolescence. 5.vyd. McGraw-Hill, 1990.
Precaución: Estas citas no son 100% exactas.