Cotton David. (2005). Market leader. Longmans.
Chicago Style aipamenaCotton David. Market Leader. Longmans, 2005.
MLA aipamenaCotton David. Market Leader. Longmans, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
Cotton David. (2005). Market leader. Longmans.
Chicago Style aipamenaCotton David. Market Leader. Longmans, 2005.
MLA aipamenaCotton David. Market Leader. Longmans, 2005.