Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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