Balassa, B. (1979). World trade: Constraints and opportunities in the 8o's. Paris: The Alantic Institute For International Affairs.
Dyfyniad Arddull ChicagoBalassa, Bela. World Trade: Constraints and Opportunities in the 8o's. Paris: The Alantic Institute For International Affairs, 1979.
Dyfyniad MLABalassa, Bela. World Trade: Constraints and Opportunities in the 8o's. Paris: The Alantic Institute For International Affairs, 1979.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.