by Harry Turtledove
Hardcover
details (USA).
(see also: eBook (Kindle) · Audible Audiobook)
details (UK).
(see also: eBook (Kindle) · eBook (Kindle) · Audible Audiobook)
details (Germany).
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details (Canada).
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ISBN: 978-0-86553-183-3
ISBN-10: 0-86553-183-8
Congdon & Weed · 1987