APA Style

COWELL, C. (2010). HOW TO TRAIN YOUR DRAGON BOOK 11, HOW TO A DRAGON'S HERO . NEW YORK: HACHETTE BOOK GROUP.

MLA Style

COWELL, CRESSIDA. "HOW TO TRAIN YOUR DRAGON BOOK 11, HOW TO A DRAGON'S HERO". NEW YORK: HACHETTE BOOK GROUP, 2010. Text.