Paperback
details (UK).(see also: Audible Audiobook)
details (USA).(see also: Audible Audiobook)
details (Germany).(see also: CD-ROM · Audible Hörbuch)
details (France).(see also: Livres audio Audible)
ISBN: 978-0-14-031460-1
ISBN-10: 0-14-031460-1
Puffin · 1982