APA Style

RIORDAN, R. (2010). PERCY JACKSON, THE DEMIGOD FILES (1). : PUFFIN BOOKS, LONDON,2010, PP.149..

MLA Style

RIORDAN, RICK. "PERCY JACKSON, THE DEMIGOD FILES". 1 : PUFFIN BOOKS, LONDON,2010, PP.149., 2010. Text.