Vander Zanden, J. W. (1986). Sociology: The core. Knopf.
Lua i Stíl Chicago (17ú heag.)Vander Zanden, James Wilfrid. Sociology: The Core. New York: Knopf, 1986.
Lua MLA (9ú heag.)Vander Zanden, James Wilfrid. Sociology: The Core. Knopf, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.