Hickman, T. K., & Hickman, W. M. (1992). Global purchasing: How to buy goods and services in foreign markets. Business One Irwin.
Παραπομπή σε μορφή Chicago (17η εκδ.)Hickman, Thomas K., και William M. Hickman. Global Purchasing: How to Buy Goods and Services in Foreign Markets. Homewood, Ill.: Business One Irwin, 1992.
Παραπομπή σε μορφή MLA (8th εκδ.)Hickman, Thomas K., και William M. Hickman. Global Purchasing: How to Buy Goods and Services in Foreign Markets. Business One Irwin, 1992.
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