Citazione Stile APA (7a Edizione)

Ball, D. A. (1990). Instructor's manual to accompany international business (4th ed.). Homewood.

Citazione stile Chigago Style (17a edizione)

Ball, Donald A. Instructor's Manual to Accompany International Business. 4th ed. Boston: Homewood, 1990.

Citatione MLA (9a ed.)

Ball, Donald A. Instructor's Manual to Accompany International Business. 4th ed. Homewood, 1990.