Oldenbourg, Z. (1966). The crusades. Pantheon Books.
Lua i Stíl Chicago (17ú heag.)Oldenbourg, Zoé. The Crusades. Nueva York: Pantheon Books, 1966.
Lua MLA (9ú heag.)Oldenbourg, Zoé. The Crusades. Pantheon Books, 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.