Gudorf. Comparative Religious Ethics. Augsburg Fortress Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGudorf. Comparative Religious Ethics. Augsburg Fortress Publishers.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGudorf. Comparative Religious Ethics. Augsburg Fortress Publishers.
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