Popenoe, D. (1983). Sociology (5th ed.). Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Popenoe, David. Sociology. 5th ed. Englewood Cliffs, N.J: Prentice-Hall, 1983.
Lua MLA (9ú heag.)Popenoe, David. Sociology. 5th ed. Prentice-Hall, 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.