APA Style

Riordan, Rick. (2010). The red pyramid (1st ed.). New York: Hyperion.

Chicago Style

Riordan, Rick. The red pyramid. 1st ed. New York: Hyperion, 2010. Text.

MLA Style

Riordan, Rick. The red pyramid. 1st ed. New York: Hyperion, 2010. Text.

Turabian Style

Riordan, Rick. The red pyramid. 1st ed. New York: Hyperion, 2010. Print.