Bird, D. (2008). Commonsense direct and digital marketing (5th ed.). Kogan Page.
Čikaški stil citiranjaBird, Drayton. Commonsense Direct and Digital Marketing. 5th ed. New Delhi: Kogan Page, 2008.
MLA način citiranjaBird, Drayton. Commonsense Direct and Digital Marketing. 5th ed. Kogan Page, 2008.
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