Ritzer, G. (2000). Sociological theory (5th.ed.). McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Ritzer, George. Sociological Theory. 5th.ed. New York: McGraw-Hill, 2000.
Lua MLA (9ú heag.)Ritzer, George. Sociological Theory. 5th.ed. McGraw-Hill, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.