Dyfyniad APA

L.Brue Stanley, & R.McConnell Campbell. (2001). Economics. American: Mc Graw-Hill.

Dyfyniad Arddull Chicago

L.Brue Stanley, và R.McConnell Campbell. Economics. American: Mc Graw-Hill, 2001.

Dyfyniad MLA

L.Brue Stanley, và R.McConnell Campbell. Economics. American: Mc Graw-Hill, 2001.

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