APA
Keegan W. J., . (1999). Global marketing management. Prentice Hall International: New Jersey.
Chicago
Keegan Warren J, . 1999. Global marketing management. Prentice Hall International: New Jersey.
Harvard
Keegan W. J., . (1999). Global marketing management. Prentice Hall International: New Jersey.
MLA
Keegan Warren J, . Global marketing management. Prentice Hall International: New Jersey. 1999.