APA Edition Citation

Riordan,Rick. (2009). Percy jackson: The demigod files. Puffin Books.

Chicago Edition Citation

Riordan,Rick. Percy Jackson: The Demigod Files. London: Puffin Books, 2009.

MLA Edition Citation

Riordan,Rick. Percy Jackson: The Demigod Files. Puffin Books, 2009.

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