Paperback
details (United Kingdom).(see also: Audible Audiobook)
details (United States).(see also: Audible Audiobook · eBook (Kindle))
details (Germany).(see also: Audible Hörbuch)
details (Canada).(see also: eBook (Kindle) · Audible Audiobook)
ISBN: 978-0-00-612380-4
ISBN-10: 0-00-612380-5
HarperCollins Distribution Services · 1970