Paperback
details (USA).(see also: eBook (Kindle) · Audible Audiobook)
details (United Kingdom).(see also: eBook (Kindle) · Audible Audiobook)
details (Germany).(see also: Kindle Ausgabe · Audible Hörbuch)
details (Italy).(see also: Formato Kindle · Audiolibro Audible)
ISBN: 978-0-545-68844-4
ISBN-10: 0-545-68844-2
Scholastic · 2014