The popes : a history
MLA
Norwich, John Julius. The Popes: a History. London: Chatto & Windus, 2011
APA, 7th edition
Norwich, J. Julius. (2011). The popes: a history. London: Chatto & Windus
Chicago, 17th edition
Norwich, John Julius. The popes: a history. London: Chatto & Windus, 2011