Paperback
details (UK).(see also: Audible Audiobook · eBook (Kindle) · Audible Audiobook)
details (USA).(see also: eBook (Kindle) · Audible Audiobook · Audible Audiobook)
details (Germany).(see also: Kindle Ausgabe · Audible Hörbuch · Audible Hörbuch)
details (Canada).(see also: eBook (Kindle) · Audible Audiobook)
ISBN: 978-0-586-02279-5
ISBN-10: 0-586-02279-1
Triad Books · 1975