APA (7th ed.) Citation

Riordan, R. (2010). The red pyramid. Disney/Hyperion Books.

Chicago Style (17th ed.) Citation

Riordan, Rick. The Red Pyramid. New York [N.Y.]: Disney/Hyperion Books, 2010.

MLA (9th ed.) Citation

Riordan, Rick. The Red Pyramid. Disney/Hyperion Books, 2010.