Dyfyniad APA

Krugman , P. R. (2017). International Economics: Theory and Policy (8th.). Pearson Education.

Dyfyniad Arddull Chicago

Krugman , Paul R. International Economics: Theory and Policy. 8th. Chennai: Pearson Education, 2017.

Dyfyniad MLA

Krugman , Paul R. International Economics: Theory and Policy. 8th. Pearson Education, 2017.

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