APA aipamena

Butje, M. (2005). Product marketing for technology companies. Butterworth.

Chicago Style aipamena

Butje, Mark. Product Marketing for Technology Companies. Butterworth, 2005.

MLA aipamena

Butje, Mark. Product Marketing for Technology Companies. Butterworth, 2005.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.