APA (7th ed.) Citation

Plaisted Caroline. (2005). 10 things to do before you're 16. Penguin Books.

Chicago Style (17th ed.) Citation

Plaisted Caroline. 10 Things to Do Before You're 16. London: Penguin Books, 2005.

MLA (9th ed.) Citation

Plaisted Caroline. 10 Things to Do Before You're 16. Penguin Books, 2005.