Bird, D. (2008). Commonsense direct and digital marketing (5.). Kogan Page.
Chicago Style (17th ed.) CitationBird, Drayton. Commonsense Direct and Digital Marketing. 5. New Delhi: Kogan Page, 2008.
MLA引文Bird, Drayton. Commonsense Direct and Digital Marketing. 5. Kogan Page, 2008.
警告:這些引文格式不一定是100%准確.