Riordan ,Rick. Percy Jackson and the battle of the labyrinth. Puffin Books.
Chicago Edition CitationRiordan ,Rick. Percy Jackson and the Battle of the Labyrinth. England: Puffin Books.
MLA Edition CitationRiordan ,Rick. Percy Jackson and the Battle of the Labyrinth. Puffin Books.
Warning: These citations may not always be 100% accurate.