APA-viite (7. p.)
Ball, D. A. [. (2002). International business: The challenge of global competition (9th ed.). McGraw-Hill/Irwin.
Chicago-viite (17. p.)
Ball, Donald A. [et-al]. International Business: The Challenge of Global Competition. 9th ed. New York: McGraw-Hill/Irwin, 2002.
MLA-viite (9. p.)
Ball, Donald A. [et-al]. International Business: The Challenge of Global Competition. 9th ed. McGraw-Hill/Irwin, 2002.
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