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Dyfyniad Arddull ChicagoHanson, Philip. USSR: Foreign Trade Implications of the 1976-1980 Plan. London: The Economist Intelligence Unit Ltd, 1976.
Dyfyniad MLAHanson, Philip. USSR: Foreign Trade Implications of the 1976-1980 Plan. The Economist Intelligence Unit Ltd, 1976.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.