APA (7th ed.) Citation

Walliams , D., & Ross , T. (2010). Billionaire Boy. HarperCollins Children's Books.

Chicago Style (17th ed.) Citation

Walliams , David, and Tony Ross. Billionaire Boy. London: HarperCollins Children's Books, 2010.

MLA (9th ed.) Citation

Walliams , David, and Tony Ross. Billionaire Boy. HarperCollins Children's Books, 2010.

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