Paperback
details (United Kingdom).(see also: eBook (Kindle) · Audible Audiobook)
details (USA).(see also: eBook (Kindle) · Audio Cassette · Audible Audiobook)
details (Germany).(see also: Kindle Ausgabe · Kindle Ausgabe · Audible Hörbuch)
details (Canada).(see also: eBook (Kindle) · Audible Audiobook)
ISBN: 978-0-7221-2738-4
ISBN-10: 0-7221-2738-3
Sphere · 1978