Paperback
details (United States).(see also: Audible Audiobook)
details (UK).(see also: Audible Audiobook)
details (Germany).(see also: Audible Hörbuch)
details (Canada).(see also: Audible Audiobook)
ISBN: 978-0-486-25253-7
ISBN-10: 0-486-25253-1
Dover Publications · 1987