APA (7th ed.) Zitazioa
Tyerman, C. (2004). Fighting for Christendom: Holy war and the crusades. Oxford University Press.
Chicago Style (17th ed.) Zitazioa
Tyerman, Christopher. Fighting for Christendom: Holy War and the Crusades. Oxford ; New York: Oxford University Press, 2004.
MLA (9th ed.) Zitazioa
Tyerman, Christopher. Fighting for Christendom: Holy War and the Crusades. Oxford University Press, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.