Dyfyniad APA

Sawyer, W. C., & Sprinkle, R. L. (2009). International economics (2rd ed.). Upper Saddle River.

Dyfyniad Arddull Chicago

Sawyer, W. Charles, and Richard L. Sprinkle. International Economics. 2rd ed. New Jersy: Upper Saddle River, 2009.

Dyfyniad MLA

Sawyer, W. Charles, and Richard L. Sprinkle. International Economics. 2rd ed. Upper Saddle River, 2009.

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