Paperback
details (UK).(see also: Audio Cassette)
details (USA).(see also: Audio Cassette · Audible Audiobook)
details (Germany).(see also: Audible Hörbuch)
details (Canada).(see also: Audio Cassette · Audible Audiobook)
ISBN: 978-0-14-030928-7
ISBN-10: 0-14-030928-4
Puffin · 1982