Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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