Lock, P. (2006). The Routledge companion to the crusades. Routledge.
Chicago Style (17th ed.) CitationLock, Peter. The Routledge Companion to the Crusades. London: Routledge, 2006.
MLA (9th ed.) CitationLock, Peter. The Routledge Companion to the Crusades. Routledge, 2006.
Warning: These citations may not always be 100% accurate.