Cowell, C. (2012). How to break a dragon's heart (First U.S. trade paperback edition.). Little, Brown.
Cita Chicago Style (17a ed.)Cowell, Cressida. How to Break a Dragon's Heart. First U.S. trade paperback edition. New York: Little, Brown, 2012.
Cita MLA (8a ed.)Cowell, Cressida. How to Break a Dragon's Heart. First U.S. trade paperback edition. Little, Brown, 2012.
Precaución: Estas citas no son 100% exactas.