Paperback
details (UK).(see also: eBook (Kindle) · Audible Audiobook)
details (USA).(see also: Audible Audiobook)
details (Germany).(see also: Kindle Ausgabe · Audible Hörbuch)
details (Canada).(see also: eBook (Kindle) · Audible Audiobook · eBook (Kindle))
ISBN: 978-0-330-02672-7
ISBN-10: 0-330-02672-0
Pan Books · 1971