Paperback
details (UK).(see also: Audible Audiobook · Audible Audiobook · Audio CD)
details (USA).(see also: Audible Audiobook · Audible Audiobook)
details (Canada).(see also: Audible Audiobook · Audible Audiobook)
ISBN: 978-0-14-004926-8
ISBN-10: 0-14-004926-6
Penguin · 1979