Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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