Coulter, C. (2017). Enigma (First Gallery Books hardcover edition.). Gallery Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCoulter, Catherine. Enigma. First Gallery Books hardcover edition. New York: Gallery Books, 2017.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCoulter, Catherine. Enigma. First Gallery Books hardcover edition. Gallery Books, 2017.
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