Paperback
details (USA).(see also: Audible Audiobook · eBook (Kindle))
details (United Kingdom).(see also: Audible Audiobook · eBook (Kindle))
details (Germany).(see also: Kindle Ausgabe · Audible Hörbuch)
details (Canada).(see also: eBook (Kindle))
ISBN: 978-0-440-10654-8
ISBN-10: 0-440-10654-0
Dell Publishing · 1980