Citazione Stile APA (7a Edizione)

Ball, D. A., & McCulloch, W. H. (1990). International business: Introduction and essentials (4th ed.). BPI/Irwin.

Citazione stile Chigago Style (17a edizione)

Ball, Donald A., e Wendell H. McCulloch. International Business: Introduction and Essentials. 4th ed. Homewood, Ill: BPI/Irwin, 1990.

Citatione MLA (9a ed.)

Ball, Donald A., e Wendell H. McCulloch. International Business: Introduction and Essentials. 4th ed. BPI/Irwin, 1990.