Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.