APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (9:e uppl.)

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