Mass Market Paperback
details (USA).(see also: Audible Audiobook · eBook (Kindle))
details (Germany).(see also: Kindle Ausgabe)
details (Canada).(see also: Audible Audiobook · eBook (Kindle))
ISBN: 978-0-06-080264-6
ISBN-10: 0-06-080264-2
Harper & Row · 1972