Paperback
details (USA).(see also: CD-ROM · eBook (Kindle) · Audible Audiobook)
details (UK).(see also: eBook (Kindle) · Audible Audiobook)
details (Germany).(see also: Audible Hörbuch · Kindle Ausgabe)
details (Canada).(see also: eBook (Kindle) · Audible Audiobook)
ISBN: 978-0-679-72313-4
ISBN-10: 0-679-72313-7
Vintage · 1989