1.
Fideles crucis. [Oxford]: Clarendon press; 1991.
Fideles crucis. Oxford : Clarendon press, 7 juin 1991. ISBN 0-19-822165-7
Schein Sylvia. (1991). Fideles crucis: The papacy, the West, and the recovery of the Holy Land, 1274-1314. Clarendon press.
MLA (8th ed.) CitationSchein Sylvia. Fideles Crucis: The Papacy, the West, and the Recovery of the Holy Land, 1274-1314. Clarendon press, 1991.
Warning: These citations may not always be 100% accurate.