APA (7th ed.) Citation

Simon, F. (1999). Horrid Henry's Haunted House. Orion Children's Books.

Chicago Style (17th ed.) Citation

Simon, Francesca. Horrid Henry's Haunted House. London: Orion Children's Books, 1999.

MLA (9th ed.) Citation

Simon, Francesca. Horrid Henry's Haunted House. Orion Children's Books, 1999.

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