Ritzer, G. (1996). Modern Sosiological Theory. McGraw-Hill.
Dyfyniad Arddull ChicagoRitzer, George. Modern Sosiological Theory. McGraw-Hill, 1996.
Dyfyniad MLARitzer, George. Modern Sosiological Theory. McGraw-Hill, 1996.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.