Cita APA (7a ed.)

Le Patourel, J. (1976). The Norman empire. Clarendon Press.

Cita Chicago Style (17a ed.)

Le Patourel, John. The Norman Empire. Oxford: Clarendon Press, 1976.

Cita MLA (9a ed.)

Le Patourel, John. The Norman Empire. Clarendon Press, 1976.