Hardcover
details (USA).(see also: Audible Audiobook)
details (United Kingdom).(see also: eBook (Kindle) · Audible Audiobook)
details (Germany).(see also: Kindle Ausgabe · Audible Hörbuch)
details (Canada).(see also: Audible Audiobook)
ISBN: 978-0-671-41490-0
ISBN-10: 0-671-41490-9
Simon & Schuster · 1980