APA (7th ed.) Citation

Jackson, S., Livingstone, I., & Nicholson, R. (2002). The Warlock of firetop mountain. Wizard Books.

Chicago Style (17th ed.) Citation

Jackson, Steve, Ian Livingstone, and Russ Nicholson. The Warlock of Firetop Mountain. Cambridge: Wizard Books, 2002.

MLA (9th ed.) Citation

Jackson, Steve, et al. The Warlock of Firetop Mountain. Wizard Books, 2002.