Paperback
details (USA).(see also: eBook (Kindle) · Audible Audiobook)
details (Germany).(see also: Kindle Ausgabe · Audible Hörbuch)
details (Canada).(see also: eBook (Kindle) · Audible Audiobook)
ISBN: 978-0-394-72913-8
ISBN-10: 0-394-72913-7
Vintage · 1985