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Dyfyniad Arddull ChicagoSau, Ranjit. Unequal Exchange, Imperialism and: Underdevelopment : An Essay on the Political Economy of World Capitalism. Calcutta: Oxford, 1978.
Dyfyniad MLASau, Ranjit. Unequal Exchange, Imperialism and: Underdevelopment : An Essay on the Political Economy of World Capitalism. Oxford, 1978.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.