Ridgway, J. (2001). Handbook of media and public relations. Infinity Books.
Chicago Style aipamenaRidgway, J. Handbook of Media and Public Relations. New Delhi: Infinity Books, 2001.
MLA aipamenaRidgway, J. Handbook of Media and Public Relations. Infinity Books, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.