Pennington, K. 1. (1984). Pope and bishops: The papal monarchy in the twelfth and thirteenth centuries. Pennsylvania: University of Pennsylvania Press.
Citación estilo ChicagoPennington, Kenneth 1941-. Pope and Bishops: The Papal Monarchy in the Twelfth and Thirteenth Centuries. Pennsylvania: University of Pennsylvania Press, 1984.
Cita MLAPennington, Kenneth 1941-. Pope and Bishops: The Papal Monarchy in the Twelfth and Thirteenth Centuries. Pennsylvania: University of Pennsylvania Press, 1984.
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