APA (7th ed.) Citation

Knight, M. J. (2009). Percy Jackson & the Olympians: The ultimate guide. Disney-Hyperion.

Chicago Style (17th ed.) Citation

Knight, M. J. Percy Jackson & the Olympians: The Ultimate Guide. New York: Disney-Hyperion, 2009.

MLA (9th ed.) Citation

Knight, M. J. Percy Jackson & the Olympians: The Ultimate Guide. Disney-Hyperion, 2009.

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