APA-viite (7. p.)
Ball, D. A. [. (2002). International business: The challenge of global competition (8th ed.). McGraw-Hill/Irwin.
Chicago-viite (17. p.)
Ball, Donald A. [et-al]. International Business: The Challenge of Global Competition. 8th ed. Boston: McGraw-Hill/Irwin, 2002.
MLA-viite (9. p.)
Ball, Donald A. [et-al]. International Business: The Challenge of Global Competition. 8th ed. McGraw-Hill/Irwin, 2002.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.