Paperback
details (USA).(see also: eBook (Kindle) · eBook (Kindle) · eBook (Kindle) · eBook (Kindle))
details (UK).(see also: Audible Audiobook)
details (Germany).(see also: Audible Hörbuch)
details (Canada).(see also: eBook (Kindle) · eBook (Kindle) · eBook (Kindle))
ISBN: 978-0-486-40100-3
ISBN-10: 0-486-40100-6
Dover Publications · 1998