Paperback
details (USA).(see also: Audible Audiobook · Audio CD · eBook (Kindle))
details (United Kingdom).(see also: Audio CD · eBook (Kindle) · CD-ROM)
details (Germany).(see also: CD-ROM · Audio CD · Kindle Ausgabe)
details (Canada).(see also: Audio CD · eBook (Kindle) · Audio CD)
ISBN: 978-0-439-91873-2
ISBN-10: 0-439-91873-1
Scholastic Paperbacks · 2008