Riordan, R. (2009). The last Olympian. Disney Hyperion Books.
Chicago Style (17th ed.) CitationRiordan, Rick. The Last Olympian. New York: Disney Hyperion Books, 2009.
MLA (9th ed.) CitationRiordan, Rick. The Last Olympian. Disney Hyperion Books, 2009.
Warning: These citations may not always be 100% accurate.