Mass Market Paperback
details (USA).(see also: Audible Audiobook · eBook (Kindle))
details (Germany).(see also: Kindle Ausgabe)
details (Canada).(see also: eBook (Kindle) · Audible Audiobook)
ISBN: 978-0-441-29846-4
ISBN-10: 0-441-29846-X
Ace · 1978