Martin, G. (2012). Understanding terrorism (4th.). Sage Publication.
Chicago Style aipamenaMartin, Gus. Understanding Terrorism. 4th. New Delhi: Sage Publication, 2012.
MLA aipamenaMartin, Gus. Understanding Terrorism. 4th. Sage Publication, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.