Riordan,Rick. (2015). The Serpent's Shadow. Puffin Books.
Chicago Style (17th ed.) CitationRiordan,Rick. The Serpent's Shadow. UK: Puffin Books, 2015.
MLA (9th ed.) CitationRiordan,Rick. The Serpent's Shadow. Puffin Books, 2015.
Warning: These citations may not always be 100% accurate.