Mass Market Paperback
details (USA).(see also: Audible Audiobook · Audible Audiobook · eBook (Kindle))
details (UK).(see also: Audible Audiobook · CD-ROM · eBook (Kindle))
details (Germany).(see also: CD-ROM · Audible Hörbuch · Kindle Ausgabe)
details (Canada).(see also: eBook (Kindle) · Audible Audiobook)
ISBN: 978-0-441-94254-1
ISBN-10: 0-441-94254-7
Ace Books · 1979