Paperback
details (USA).(see also: Audible Audiobook)
details (UK).(see also: Audible Audiobook · eBook (Kindle))
details (Germany).(see also: Kindle Ausgabe · Audible Hörbuch)
details (Canada).(see also: Audible Audiobook)
ISBN: 978-0-553-27942-9
ISBN-10: 0-553-27942-4
Spectra · 1985