APA (7th ed.) Citation

Simon, F. (2002). Horrid Henry and the Babysitter. Great Britain.

Chicago Style (17th ed.) Citation

Simon, Francesca. Horrid Henry and the Babysitter. London: Great Britain, 2002.

MLA (9th ed.) Citation

Simon, Francesca. Horrid Henry and the Babysitter. Great Britain, 2002.

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