Paperback
details (UK).(see also: Audio Cassette)
details (United States).(see also: Audio Cassette · Audio Cassette)
details (Germany).(see also: Hörkassette)
details (Canada).(see also: Audio Cassette · Audible Audiobook)
ISBN: 978-0-00-634746-0
ISBN-10: 0-00-634746-0
HarperCollins Distribution Services · 1977