Galactic Odyssey (R) 1987, Tor Books

ISBN-13: 9780812543858

Mass-market paperback

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Galactic odyssey 1983, Tom Doherty Associates, New York

ISBN-13: 9780523485898

Paperback

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Galactic Odyssey 1970, HarperCollins Distribution Services

ISBN-13: 9780583117296

New edition

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Galactic Odyssey 1968, Dobson Books Ltd, Durham

ISBN-13: 9780234772270

Hardcover

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