APA (7th ed.) Citation

Riordan, R. (2010). The Heroes of Olympus (1. ed.). Disney/Hyperion Books.

Chicago Style (17th ed.) Citation

Riordan, Rick. The Heroes of Olympus. 1. ed. New York: Disney/Hyperion Books, 2010.

MLA (9th ed.) Citation

Riordan, Rick. The Heroes of Olympus. 1. ed. Disney/Hyperion Books, 2010.