Cowell, C. (2012). How to steal a dragon's sword: The heroic misadventures of Hiccup the Viking (1st U.S. ed.). Little, Brown and Co..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCowell, Cressida. How to Steal a Dragon's Sword: The Heroic Misadventures of Hiccup the Viking. 1st U.S. ed. New York: Little, Brown and Co., 2012.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCowell, Cressida. How to Steal a Dragon's Sword: The Heroic Misadventures of Hiccup the Viking. 1st U.S. ed. Little, Brown and Co., 2012.
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