Firestone. The Persistence of the Sacred in Modern Thought. University of Notre Dame Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFirestone. The Persistence of the Sacred in Modern Thought. University of Notre Dame Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFirestone. The Persistence of the Sacred in Modern Thought. University of Notre Dame Press.
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