APA (7th ed.) Citation

(2004). The medieval crusade (1. publ.). Boydell Press.

Chicago Style (17th ed.) Citation

The Medieval Crusade. 1. publ. Woodbridge, Suffolk [u.a.]: Boydell Press, 2004.

MLA (9th ed.) Citation

The Medieval Crusade. 1. publ. Boydell Press, 2004.