Keegan, W. J. (2008). Global Marketing (4th ed.). Pearson Education.
Chicago Style aipamenaKeegan, Warren J. Global Marketing. 4th ed. New Delhi: Pearson Education, 2008.
MLA aipamenaKeegan, Warren J. Global Marketing. 4th ed. Pearson Education, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.