Ullmann, W. (1974). A short history of the papacy in the Middle Ages (1st published, repr. with corrections.). Methuen.
Cita Chicago Style (17a ed.)Ullmann, Walter. A Short History of the Papacy in the Middle Ages. 1st published, repr. with corrections. London: Methuen, 1974.
Cita MLA (9a ed.)Ullmann, Walter. A Short History of the Papacy in the Middle Ages. 1st published, repr. with corrections. Methuen, 1974.
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