by Robert A. Heinlein
Paperback
details (USA).
(see also: Audible Audiobook · eBook (Kindle))
details (UK).
(see also: Audible Audiobook · eBook (Kindle))
details (Germany).
(see also: Kindle Ausgabe · Audible Hörbuch)
details (Canada).
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ISBN: 978-0-425-01809-5
ISBN-10: 0-425-01809-1
Berkley Medallion Book · 1970