by Gordon R. Dickson
Paperback
details (United Kingdom).
(see also: Audible Audiobook · Audible Audiobook · eBook (Kindle))
details (USA).
(see also: Audible Audiobook)
details (Germany).
(see also: Audible Hörbuch · Kindle Ausgabe · Audible Hörbuch)
details (Canada).
(see also: Audible Audiobook)
ISBN: 978-0-7221-2972-2
ISBN-10: 0-7221-2972-6
Sphere Books Ltd. · 1975