APA (7th ed.) Citation

Richard, J. (1999). The Crusades, c. 1071-c. 1291. Cambridge University Press.

Chicago Style (17th ed.) Citation

Richard, Jean. The Crusades, C. 1071-c. 1291. Cambridge ; New York: Cambridge University Press, 1999.

MLA (9th ed.) Citation

Richard, Jean. The Crusades, C. 1071-c. 1291. Cambridge University Press, 1999.