APA (7th ed.) Citation

Riordan Rick. (2012). Serpent's Shadow. Puffin Books.

Chicago Style (17th ed.) Citation

Riordan Rick. Serpent's Shadow. England: Puffin Books, 2012.

MLA (9th ed.) Citation

Riordan Rick. Serpent's Shadow. Puffin Books, 2012.

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