APA (7th ed.) Zitazioa

Oldenbourg, Z. (1966). The crusades. Pantheon Books.

Chicago Style (17th ed.) Zitazioa

Oldenbourg, Zoé. The Crusades. Nueva York: Pantheon Books, 1966.

MLA (9th ed.) Zitazioa

Oldenbourg, Zoé. The Crusades. Pantheon Books, 1966.