Dyfyniad APA

Nielsen, J. U. (1995). International economics: The wealth of open nations. .McGraw-Hill Book Co.

Dyfyniad Arddull Chicago

Nielsen, Jorgen Ulff-Moller. International Economics: The Wealth of Open Nations. London ; New York: .McGraw-Hill Book Co, 1995.

Dyfyniad MLA

Nielsen, Jorgen Ulff-Moller. International Economics: The Wealth of Open Nations. .McGraw-Hill Book Co, 1995.

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