Gaya APA

RIORDAN, R. (2008). E-BOOK PERCY JACKSON THE BATTLE OF THE LABYRINTH . NEW YORK: HYPERION BOOKS FOR CHILDREN.

Gaya MLA

RIORDAN, RICK. "E-BOOK PERCY JACKSON THE BATTLE OF THE LABYRINTH". NEW YORK: HYPERION BOOKS FOR CHILDREN, 2008. Computer File.