APA aipamena

 Keegan, W. J. (2017).  Global marketing.  Pearson.

Chicago Style aipamena

 Keegan, Warren J.  Global Marketing.  Pearson, 2017.

MLA aipamena

 Keegan, Warren J.  Global Marketing.  Pearson, 2017.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.