Paperback
details (USA).(see also: Audible Audiobook · CD-ROM · CD-ROM)
details (United Kingdom).(see also: Audible Audiobook · CD-ROM)
details (Germany).(see also: CD-ROM)
details (Canada).(see also: CD-ROM · Audible Audiobook)
ISBN: 978-0-590-41427-2
ISBN-10: 0-590-41427-5
Scholastic Press · 1990