Gaya APA

Ball, D, A., McCULLOCH, W. (2006). INTERNATIONAL BUSINESS; The Challenge of Global Competition (10th). New York: MCGRAW-HILL.

Gaya MLA

Ball, Donald, A.., McCULLOCH, Wendell. "INTERNATIONAL BUSINESS; The Challenge of Global Competition". 10th New York: MCGRAW-HILL, 2006. Text.