Bird, D. (2008). Commonsense Direct and Digital Marketing (5th.). Kogan Page India Private Limited.
Citazione stile Chigago Style (17a edizione)Bird, Drayton. Commonsense Direct and Digital Marketing. 5th. New Delhi: Kogan Page India Private Limited, 2008.
Citatione MLA (9a ed.)Bird, Drayton. Commonsense Direct and Digital Marketing. 5th. Kogan Page India Private Limited, 2008.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.