APA-viite (7. p.)
Ball, D. A., & McCulloch, W. H. (1990). International business: Introduction and essentials (4th ed.). Irwin.
Chicago-viite (17. p.)
Ball, Donald A., ja Wendell H. McCulloch. International Business: Introduction and Essentials. 4th ed. Homewood, Illinois: Irwin, 1990.
MLA-viite (9. p.)
Ball, Donald A., ja Wendell H. McCulloch. International Business: Introduction and Essentials. 4th ed. Irwin, 1990.
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