Hardcover
details (United States).(see also: Audible Audiobook · Audio CD)
details (United Kingdom).(see also: Audible Audiobook · eBook (Kindle))
details (Germany).(see also: Kindle Ausgabe · Audible Hörbuch)
details (Canada).(see also: Audio CD · Audible Audiobook)
ISBN: 978-0-399-22249-8
ISBN-10: 0-399-22249-9
Putnam Juvenile · 1991