Dyfyniad APA

Wilson, J. H., & Clark, J. R. (1996). Economics (4th ed.). Cincinnati, Ohio: South Western Educational Pub..

Dyfyniad Arddull Chicago

Wilson, J. Holton, và J. R. Clark. Economics. 4th ed. Cincinnati, Ohio: South Western Educational Pub., 1996.

Dyfyniad MLA

Wilson, J. Holton, và J. R. Clark. Economics. 4th ed. Cincinnati, Ohio: South Western Educational Pub., 1996.

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