Ritzer, G. (1996). Sociological theory (4th ed.). McGraw-Hill Companies.
Chicago Style aipamenaRitzer, George. Sociological Theory. 4th ed. New York: McGraw-Hill Companies, 1996.
MLA aipamenaRitzer, George. Sociological Theory. 4th ed. McGraw-Hill Companies, 1996.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.