Ball, D. A. (2004). International business: The challenge of global competition (9th ed.). McGraw-Hill/Irwin.
Chicago Style (17. basım) AtıfBall, Donald A. International Business: The Challenge of Global Competition. 9th ed. Boston: McGraw-Hill/Irwin, 2004.
MLA (9th ed.) AtıfBall, Donald A. International Business: The Challenge of Global Competition. 9th ed. McGraw-Hill/Irwin, 2004.
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