Dyfyniad APA
Begg, D., Fischer,Stanley, & Dornbusch,Rudiger. (1997). Economics (5th ed.). The McGraw-Hill.
Dyfyniad Arddull Chicago
Begg, David, Fischer,Stanley, and Dornbusch,Rudiger. Economics. 5th ed. London: The McGraw-Hill, 1997.
Dyfyniad MLA
Begg, David, et al. Economics. 5th ed. The McGraw-Hill, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.