Gaya APA

ball, donald. (1989). International Business. Introduction And Essentials . New York: .

Gaya Chicago

ball, donald. International Business. Introduction And Essentials. New York: , 1989. Text.

Gaya MLA

ball, donald. International Business. Introduction And Essentials. New York: , 1989. Text.

Gaya Turabian

ball, donald. International Business. Introduction And Essentials. New York: , 1989. Print.