Cita APA (7a ed.)

Housley, N. (1982). The Italian Crusades: The Papal-Angevin Alliance and the Crusades against Christian Lay Powers, 1254-1343. Clarendon Press.

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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