Bird, D. (2008). Commonsense direct and digital marketing (5th ed.). Kogan Page.
Chicago-stil citatBird, Drayton. Commonsense Direct and Digital Marketing. 5th ed. New Delhi: Kogan Page, 2008.
MLA-referensBird, Drayton. Commonsense Direct and Digital Marketing. 5th ed. Kogan Page, 2008.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.