Vander Zanden, J. W. (1997). Human development (Six edition.). McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Vander Zanden, James Wilfrid. Human Development. Six edition. New York: McGraw-Hill, 1997.
Lua MLA (8ú heag.)Vander Zanden, James Wilfrid. Human Development. Six edition. McGraw-Hill, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.