APA (7th ed.) Citation

Francesca Simon & Ross , T. (2005). Horrid Henry's Big Bad Book. Orion Children's Books.

Chicago Style (17th ed.) Citation

Francesca Simon and Tony Ross. Horrid Henry's Big Bad Book. London: Orion Children's Books, 2005.

MLA (9th ed.) Citation

Francesca Simon and Tony Ross. Horrid Henry's Big Bad Book. Orion Children's Books, 2005.

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