APA (7th ed.) Citation

Simon, F., & Ross, T. (2013). Horrid Henry's guide to perfect parents. POrion publishing Group.

Chicago Style (17th ed.) Citation

Simon, Francesca, and Tony Ross. Horrid Henry's Guide to Perfect Parents. Great Britain: POrion publishing Group, 2013.

MLA (9th ed.) Citation

Simon, Francesca, and Tony Ross. Horrid Henry's Guide to Perfect Parents. POrion publishing Group, 2013.