Hardcover
details (UK).(see also: Audible Audiobook)
details (United States).(see also: Audible Audiobook)
details (Germany).(see also: Audible Hörbuch)
details (Canada).(see also: Audible Audiobook)
ISBN: 978-0-00-231360-5
ISBN-10: 0-00-231360-X
HarperCollins Publishers Ltd · 1979