Schaefer, R. T., & Lamm, R. P. (1995). Sociology (5th ed.). McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Schaefer, Richard T., agus Robert P. Lamm. Sociology. 5th ed. New York: McGraw-Hill, 1995.
Lua MLA (9ú heag.)Schaefer, Richard T., agus Robert P. Lamm. Sociology. 5th ed. McGraw-Hill, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.