APA (7th ed.) Citation

Riordan, R. (2011). The last Olympian. Disney/Hyperion Books.

Chicago Style (17th ed.) Citation

Riordan, Rick. The Last Olympian. New York: Disney/Hyperion Books, 2011.

MLA (8th ed.) Citation

Riordan, Rick. The Last Olympian. Disney/Hyperion Books, 2011.

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