Dyfyniad APA

Steven Husted & Michael Melvin. (2013). International Economics (9th ed.). Pearson.

Dyfyniad Arddull Chicago

Steven Husted and Michael Melvin. International Economics. 9th ed. NewYork: Pearson, 2013.

Dyfyniad MLA

Steven Husted and Michael Melvin. International Economics. 9th ed. Pearson, 2013.

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