Cita APA (7th ed.)
Ball, D. A. [. (2002). International business: The challenge of global competition (9th ed.). McGraw-Hill/Irwin.
Cita Chicago (17th ed.)
Ball, Donald A. [et-al]. International Business: The Challenge of Global Competition. 9th ed. New York: McGraw-Hill/Irwin, 2002.
Cita MLA (9th ed.)
Ball, Donald A. [et-al]. International Business: The Challenge of Global Competition. 9th ed. McGraw-Hill/Irwin, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.