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Dyfyniad Arddull ChicagoOnkvisit, Sak. International Marketing: Analysis and Strategy. New Delhi: Prentice-Hall of India, 1997.
Dyfyniad MLAOnkvisit, Sak. International Marketing: Analysis and Strategy. Prentice-Hall of India, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.