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Dyfyniad Arddull ChicagoJacobsson, Per. The Market Economy in the World of Today. Philadelphia: American Philosophical Society, 1961.
Dyfyniad MLAJacobsson, Per. The Market Economy in the World of Today. American Philosophical Society, 1961.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.