APA Style

RIORDAN, R. (2013). PERCY JACKSON & THE BATTLE OF THE LABYRINTH (1). : PUFFIN BOOKS-UNITED STATES OF AMERICA-2013.

MLA Style

RIORDAN, Rick. "PERCY JACKSON & THE BATTLE OF THE LABYRINTH". 1 : PUFFIN BOOKS-UNITED STATES OF AMERICA-2013, 2013. Text.