Hardcover
details (USA).(see also: Audible Audiobook · eBook (Kindle))
details (Germany).(see also: Kindle Ausgabe)
details (Canada).(see also: eBook (Kindle) · Audible Audiobook)
ISBN: 978-0-03-000738-5
ISBN-10: 0-03-000738-0
Henry Holt & Co · 1985