Keegan, W. J., & Green, M. C. (2002). Global marketing management (7th ed.). Prentice Hall.

Keegan, Warren J., and Mark C. Green. Global Marketing Management. 7th ed. Upper Saddle River, N.J.: Prentice Hall, 2002.

Keegan, Warren J., and Mark C. Green. Global Marketing Management. 7th ed. Prentice Hall, 2002.