APA (7th ed.) Citation

Housley, N. (1986). The Avignon papacy and the crusades, 1305 - 1378. Clarendon Press.

Chicago Style (17th ed.) Citation

Housley, Norman. The Avignon Papacy and the Crusades, 1305 - 1378. Oxford: Clarendon Press, 1986.

MLA (8th ed.) Citation

Housley, Norman. The Avignon Papacy and the Crusades, 1305 - 1378. Clarendon Press, 1986.

Warning: These citations may not always be 100% accurate.