Cowell, C. (2013). How to betray a dragon's hero: The heroic misadventures of Hiccup the viking (First U.S. edition.). Little, Brown and Company.
Cita Chicago Style (17a ed.)Cowell, Cressida. How to Betray a Dragon's Hero: The Heroic Misadventures of Hiccup the Viking. First U.S. edition. New York ; Boston: Little, Brown and Company, 2013.
Cita MLA (8a ed.)Cowell, Cressida. How to Betray a Dragon's Hero: The Heroic Misadventures of Hiccup the Viking. First U.S. edition. Little, Brown and Company, 2013.
Precaución: Estas citas no son 100% exactas.