Paperback
details (USA).(see also: eBook (Kindle) · Audible Audiobook)
details (United Kingdom).(see also: eBook (Kindle) · Audible Audiobook · eBook (Kindle))
details (Germany).(see also: Audible Hörbuch)
details (Canada).(see also: eBook (Kindle) · Audible Audiobook)
ISBN: 978-0-671-70812-2
ISBN-10: 0-671-70812-0
Pocket · 1993