Schein, S. (1991). Fideles crucis: The Papacy, the West, and the recovery of the Holy Land, 1274 - 1314. Clarendon Press.
Style de citation Chicago (17e éd.)Schein, Sylvia. Fideles Crucis: The Papacy, the West, and the Recovery of the Holy Land, 1274 - 1314. Oxford [u.a.]: Clarendon Press, 1991.
Style de citation MLA (8e éd.)Schein, Sylvia. Fideles Crucis: The Papacy, the West, and the Recovery of the Holy Land, 1274 - 1314. Clarendon Press, 1991.
Attention : ces citations peuvent ne pas être correctes à 100%.