Tolkien, J. R. R. (1980). Sir Gawain and the Green Knight, Pearl, and Sir Orfeo (First Ballantine books edition.). Ballantine Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTolkien, J. R. R. Sir Gawain and the Green Knight, Pearl, and Sir Orfeo. First Ballantine books edition. New York: Ballantine Books, 1980.
एमएलए (8वां संस्करण) प्रशस्ति पत्रTolkien, J. R. R. Sir Gawain and the Green Knight, Pearl, and Sir Orfeo. First Ballantine books edition. Ballantine Books, 1980.
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