APA aipamena

Bird, D. (2008). Commonsense direct and digital marketing (5.). Kogan Page.

Chicago Style aipamena

Bird, Drayton. Commonsense Direct and Digital Marketing. 5. New Delhi: Kogan Page, 2008.

MLA aipamena

Bird, Drayton. Commonsense Direct and Digital Marketing. 5. Kogan Page, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.