Gaya APA

Ball, D, A. et al (2010). International business. Twelfth Edition (Ed.Ke-12). New York: McGraw-Hill/Irwin.

Gaya MLA

Ball, Donald, A.. et al. "International business. Twelfth Edition". Ed.Ke-12 New York: McGraw-Hill/Irwin, 2010. Textbook.