Hardcover
details (USA).(see also: Audible Audiobook)
details (United Kingdom).(see also: Audible Audiobook · eBook (Kindle))
details (Germany).(see also: Audible Hörbuch · Kindle Ausgabe)
details (Canada).(see also: Audible Audiobook)
ISBN: 978-0-395-26470-6
ISBN-10: 0-395-26470-7
Houghton Mifflin Company · 1978