APA (7th ed.) Zitazioa
Hagar, C. (2012). Crisis information management: Communication and technologies. Chandos Pub.
Chicago Style (17th ed.) Zitazioa
Hagar, Christine. Crisis Information Management: Communication and Technologies. Oxford: Chandos Pub, 2012.
MLA (9th ed.) Zitazioa
Hagar, Christine. Crisis Information Management: Communication and Technologies. Chandos Pub, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.