Dyfyniad APA

Appleyard, D. R. (2006). International economics. New York: McGraw-Hill.

Dyfyniad Arddull Chicago

Appleyard, Dennis R. International Economics. New York: McGraw-Hill, 2006.

Dyfyniad MLA

Appleyard, Dennis R. International Economics. New York: McGraw-Hill, 2006.

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