Ellis Nick. (2011). Business to Business Marketing: Channels,Chains....vol.2. Sage.
Chicago Style aipamenaEllis Nick. Business to Business Marketing: Channels,Chains....vol.2. London: Sage, 2011.
MLA aipamenaEllis Nick. Business to Business Marketing: Channels,Chains....vol.2. Sage, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.