APA (7th ed.) Zitazioa

Runciman, S. (1980). The first crusade. Cambridge University.

Chicago Style (17th ed.) Zitazioa

Runciman, Steven. The First Crusade. New York: Cambridge University, 1980.

MLA (9th ed.) Zitazioa

Runciman, Steven. The First Crusade. Cambridge University, 1980.