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