APA (7th ed.) Citation

Riley-Smith, J. S. C. (2008). The crusades, Christianity, and Islam. Columbia Univ. Press.

Chicago Style (17th ed.) Citation

Riley-Smith, Jonathan Simon Christopher. The Crusades, Christianity, and Islam. New York [u.a.]: Columbia Univ. Press, 2008.

MLA (9th ed.) Citation

Riley-Smith, Jonathan Simon Christopher. The Crusades, Christianity, and Islam. Columbia Univ. Press, 2008.

Warning: These citations may not always be 100% accurate.