APA aipamena

Colborn, J. (2006). Search Marketing Strategies (5th.). Prentice-Hall of India.

Chicago Style aipamena

Colborn, James. Search Marketing Strategies. 5th. New Delhi: Prentice-Hall of India, 2006.

MLA aipamena

Colborn, James. Search Marketing Strategies. 5th. Prentice-Hall of India, 2006.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.