Mann, H. K. (1925). The lives of the popes in the early middle ages The lives of the popes in the early middle ages.
芝加哥风格引文Mann, Horace Kinder. "The Lives of the Popes in the Early Middle Ages." The Lives of the Popes in the Early Middle Ages 1925.
MLA引文Mann, Horace Kinder. "The Lives of the Popes in the Early Middle Ages." The Lives of the Popes in the Early Middle Ages, 1925.
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