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Dyfyniad Arddull ChicagoHill, Charles. International Business: Competing in the Global Market Place. 2nd ed. Boston: Irwin McGraw-Hill, 1999.
Dyfyniad MLAHill, Charles. International Business: Competing in the Global Market Place. 2nd ed. Irwin McGraw-Hill, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.