APA aipamena

 Brennan, R. (2017).  Business-to-business marketing.  Sage.

Chicago Style aipamena

 Brennan, Ross.  Business-to-business Marketing.  Sage, 2017.

MLA aipamena

 Brennan, Ross.  Business-to-business Marketing.  Sage, 2017.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.