Dyfyniad APA

(2008). At the crossroads: The world trading system and the Doha round. Springwien.

Dyfyniad Arddull Chicago

At the Crossroads: The World Trading System and the Doha Round. New York: Springwien, 2008.

Dyfyniad MLA

At the Crossroads: The World Trading System and the Doha Round. Springwien, 2008.

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