David, E. (2016). How to track a dragon (First Simon Spotlight edition.). Simon Spotlight.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDavid, Erica. How to Track a Dragon. First Simon Spotlight edition. New York: Simon Spotlight, 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रDavid, Erica. How to Track a Dragon. First Simon Spotlight edition. Simon Spotlight, 2016.
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