APA Style

COWELL, C. (2010). HOW TO TRAIN YOUR DRAGON BOOK 7, HOW TO RIDE A DRAGON'S STORM . NEW YORK: HACHETTE BOOK GROUP.

MLA Style

COWELL, CRESSIDA. "HOW TO TRAIN YOUR DRAGON BOOK 7, HOW TO RIDE A DRAGON'S STORM". NEW YORK: HACHETTE BOOK GROUP, 2010. Text.