by Robert L. Forward
Hardcover
details (USA).
(see also: eBook (Kindle) · Audible Audiobook)
details (UK).
(see also: eBook (Kindle))
details (Germany).
(see also: Kindle Ausgabe)
details (Canada).
(see also: eBook (Kindle) · Audible Audiobook)
ISBN: 978-0-345-28646-8
ISBN-10: 0-345-28646-4
Ballantine Books · 1980