Cita APA (7th ed.)

Bird, D. (2008). Commonsense Direct and Digital Marketing (5th.). Kogan Page India Private Limited.

Cita Chicago (17th ed.)

Bird, Drayton. Commonsense Direct and Digital Marketing. 5th. New Delhi: Kogan Page India Private Limited, 2008.

Cita MLA (9th ed.)

Bird, Drayton. Commonsense Direct and Digital Marketing. 5th. Kogan Page India Private Limited, 2008.