APA aipamena

 Sommers, M. (2007).  Marketing: A customer centric approach.  McGraw-Hill.

Chicago Style aipamena

 Sommers, Montrose.  Marketing: A Customer Centric Approach.  McGraw-Hill, 2007.

MLA aipamena

 Sommers, Montrose.  Marketing: A Customer Centric Approach.  McGraw-Hill, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.