Paperback
details (UK).(see also: Audible Audiobook)
details (USA).(see also: Audible Audiobook)
details (Germany).(see also: Audible Hörbuch)
details (Canada).(see also: Audible Audiobook)
ISBN: 978-0-04-827020-7
ISBN-10: 0-04-827020-2
HarperCollins Publishers Ltd · 1980