Cita APA (7a ed.)

Chadwick, O. (1998). A history of the Popes, 1830-1914. Clarendon.

Cita Chicago Style (17a ed.)

Chadwick, Owen. A History of the Popes, 1830-1914. Oxford: Clarendon, 1998.

Cita MLA (9a ed.)

Chadwick, Owen. A History of the Popes, 1830-1914. Clarendon, 1998.