APA (7th ed.) Citation

Housley, N. (1982). The Italian crusades : the Papal-Angevin alliance and the crusades against Christian lay powers, 1254-1343 / Norman Housley: The Papal-Angevin alliance and the crusades against Christian lay powers, 1254-1343. Clarendon.

Chicago Style (17th ed.) Citation

Housley, Norman. The Italian Crusades : The Papal-Angevin Alliance and the Crusades Against Christian Lay Powers, 1254-1343 / Norman Housley: The Papal-Angevin Alliance and the Crusades Against Christian Lay Powers, 1254-1343. Oxford: Clarendon, 1982.

MLA (9th ed.) Citation

Housley, Norman. The Italian Crusades : The Papal-Angevin Alliance and the Crusades Against Christian Lay Powers, 1254-1343 / Norman Housley: The Papal-Angevin Alliance and the Crusades Against Christian Lay Powers, 1254-1343. Clarendon, 1982.

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