APA (7th ed.) Citation

Power, T. (2010). The boy who howled (1st U.S. ed.). Bloomsbury Children's Books.

Chicago Style (17th ed.) Citation

Power, Timothy. The Boy Who Howled. 1st U.S. ed. New York: Bloomsbury Children's Books, 2010.

MLA (8th ed.) Citation

Power, Timothy. The Boy Who Howled. 1st U.S. ed. Bloomsbury Children's Books, 2010.

Warning: These citations may not always be 100% accurate.