Spiers, K. E. (1974). The sources and significance of the concept of ecclesiastical poverty in the writings of Marsilius of Padua.
Παραπομπή σε μορφή Chicago (17η εκδ.)Spiers, Kerry Edwards. The Sources and Significance of the Concept of Ecclesiastical Poverty in the Writings of Marsilius of Padua. 1974.
Παραπομπή σε μορφή MLA (9th εκδ.)Spiers, Kerry Edwards. The Sources and Significance of the Concept of Ecclesiastical Poverty in the Writings of Marsilius of Padua. 1974.
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