Lua APA (7ú heag.)

Ball, D. A., & McCulloch, H. W. (1993). International business: Introduction and essentials (5th ed.). Irwin.

Lua i Stíl Chicago (17ú heag.)

Ball, Donald A., agus H. Wendell McCulloch. International Business: Introduction and Essentials. 5th ed. Burr Ridge, Ill: Irwin, 1993.

Lua MLA (9ú heag.)

Ball, Donald A., agus H. Wendell McCulloch. International Business: Introduction and Essentials. 5th ed. Irwin, 1993.

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