Dworetzky, J. P. (1995). Human development: A life span approach (2nd ed.). West Publishing.
Lua i Stíl Chicago (17ú heag.)Dworetzky, John P. Human Development: A Life Span Approach. 2nd ed. New York: West Publishing, 1995.
Lua MLA (9ú heag.)Dworetzky, John P. Human Development: A Life Span Approach. 2nd ed. West Publishing, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.