Hardcover
details (USA).(see also: eBook (Kindle) · Audible Audiobook)
details (UK).(see also: eBook (Kindle) · Audible Audiobook)
details (Germany).(see also: Kindle Ausgabe · Audible Hörbuch)
ISBN: 978-0-671-21123-3
ISBN-10: 0-671-21123-4
Simon and Schuster · 1972