APA Edition Citation

Riordan,Rick. (2010). Percy Jackson the demigod files. Puffin books.

Chicago Edition Citation

Riordan,Rick. Percy Jackson the Demigod Files. London: Puffin books, 2010.

MLA Edition Citation

Riordan,Rick. Percy Jackson the Demigod Files. Puffin books, 2010.

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