Sybel, H. v., & Duff Gordon, L. (1906). The history and literature of the crusades. London : New York: G. Routledge ; E. P. Dutton.
Chicago Style CitationSybel, Heinrich von, and Lucie Duff Gordon. The History and Literature of the Crusades. London : New York: G. Routledge ; E. P. Dutton, 1906.
MLA CitationSybel, Heinrich von, and Lucie Duff Gordon. The History and Literature of the Crusades. London : New York: G. Routledge ; E. P. Dutton, 1906.
Warning: These citations may not always be 100% accurate.