Sigelman, C. K., & Rider, E. A. (2003). Life-span human development (4th ed.). Thomson/Wadsworth.
Chicago Style aipamenaSigelman, Carol K., and Elizabeth A. Rider. Life-span Human Development. 4th ed. Australia: Thomson/Wadsworth, 2003.
MLA aipamenaSigelman, Carol K., and Elizabeth A. Rider. Life-span Human Development. 4th ed. Thomson/Wadsworth, 2003.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.