Bear, E. (2017). The stone in the skull (First edition.). Tom Doherty Associates.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBear, Elizabeth. The Stone in the Skull. First edition. New York: Tom Doherty Associates, 2017.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBear, Elizabeth. The Stone in the Skull. First edition. Tom Doherty Associates, 2017.
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