APA Style

Riordan, R, H, B, F, C, D, B, G. (2012). The serpent's shadow (First edition). New York: Disney/Hyperion Books.

MLA Style

Riordan, Rick;, Hyperion, Books, For, Children;, Disney, Book, Group. "The serpent's shadow". First edition New York: Disney/Hyperion Books, 2012. Text.