APA (7th ed.) Citation

Knight, K., & Larkum, A. (2008). Whyn shouldn't I eat junk food? Usborne Publishing Ltd.

Chicago Style (17th ed.) Citation

Knight, Kate, and Adam Larkum. Whyn Shouldn't I Eat Junk Food? London: Usborne Publishing Ltd, 2008.

MLA (9th ed.) Citation

Knight, Kate, and Adam Larkum. Whyn Shouldn't I Eat Junk Food? Usborne Publishing Ltd, 2008.