Dyfyniad APA

Cowell, C. (2008). How to twist a dragon's tale: The heroic misadventures of Hiccup the Viking (First U.S. edition.). Little Brown and Company.

Dyfyniad Arddull Chicago

Cowell, Cressida. How to Twist a Dragon's Tale: The Heroic Misadventures of Hiccup the Viking. First U.S. edition. New York: Little Brown and Company, 2008.

Dyfyniad MLA

Cowell, Cressida. How to Twist a Dragon's Tale: The Heroic Misadventures of Hiccup the Viking. First U.S. edition. Little Brown and Company, 2008.

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