Gaya APA

Horrendous, H, I, H., Cowel, C. (2007). How to Twist a Dragon Tale . London: Hodder Children's Books.

Gaya MLA

Horrendous, Haddock, III,, Hiccup., Cowel, Cressida. "How to Twist a Dragon Tale". London: Hodder Children's Books, 2007. Text / Book.