APA (7th ed.) Citation

Riordan,Rick. (2013). The red pyramid. Puffin.

Chicago Style (17th ed.) Citation

Riordan,Rick. The Red Pyramid. London: Puffin, 2013.

MLA (8th ed.) Citation

Riordan,Rick. The Red Pyramid. Puffin, 2013.

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