APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Riordan, Rick. The Red Pyramid. First edition. New York, NY: Disney / Hyperion Books, 2010.

MLA (9th ed.) Citation

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

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