Ullmann, W. (1955). The growth of papal government in the Middle Ages: A study in the ideological relation of clerical to lay power. Methuen.
Cita Chicago Style (17a ed.)Ullmann, Walter. The Growth of Papal Government in the Middle Ages: A Study in the Ideological Relation of Clerical to Lay Power. London: Methuen, 1955.
Cita MLA (9a ed.)Ullmann, Walter. The Growth of Papal Government in the Middle Ages: A Study in the Ideological Relation of Clerical to Lay Power. Methuen, 1955.
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