Dyfyniad APA

Ritzer, G. (2000). Sociological theory (5th.ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Ritzer, George. Sociological Theory. 5th.ed. New York: McGraw-Hill, 2000.

Dyfyniad MLA

Ritzer, George. Sociological Theory. 5th.ed. McGraw-Hill, 2000.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.