APA (7th ed.) Citation

Grousset, R. (1970). The epic of the Crusades. Orion Press.

Chicago Style (17th ed.) Citation

Grousset, Rene. The Epic of the Crusades. New York: Orion Press, 1970.

MLA (9th ed.) Citation

Grousset, Rene. The Epic of the Crusades. Orion Press, 1970.