Mass Market Paperback, published in by Puffin
Paperback, published in by Penguin Books
Hardcover, published in by Thienemanns (K.) Verlag
Paperback, published in by Alfaguara
Paperback, published in by Farrar, Straus and Giroux (BYR)
Paperback, published in by Juvenil Alfaguara
Hardcover, published in by Overlook Juvenile
Hardcover, published in by Viking
