Ysaac, W. L. (1972). The faith of the church as salvational power: A study of St. Thomas' thought.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रYsaac, Walter L. The Faith of the Church as Salvational Power: A Study of St. Thomas' Thought. Toronto, 1972.
एमएलए (8वां संस्करण) प्रशस्ति पत्रYsaac, Walter L. The Faith of the Church as Salvational Power: A Study of St. Thomas' Thought. 1972.
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