Gaya APA

Cowell, C. (2010). How To Train Your Dragon Book 7 : How to Ride a Dragon's Strom . New York: Little, Brown and Company.

Gaya MLA

Cowell, Cressida. "How To Train Your Dragon Book 7 : How to Ride a Dragon's Strom". New York: Little, Brown and Company, 2010. Text.