Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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