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Dyfyniad Arddull ChicagoChacholiades, Miltiades. International Trade Theory and Policy. 2nd ed. NewYork: McGraw- Hill, 1978.
Dyfyniad MLAChacholiades, Miltiades. International Trade Theory and Policy. 2nd ed. McGraw- Hill, 1978.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.