Paperback
details (USA).(see also: Audible Audiobook · eBook (Kindle))
details (UK).(see also: Audible Audiobook)
details (Germany).(see also: Audible Hörbuch · Kindle Ausgabe)
details (France).(see also: livre numérique format Kindle · Livres audio Audible)
ISBN: 978-0-930330-10-1
ISBN-10: 0-930330-10-2
Intl Polygonics Ltd · 1984