Formats & Editions
Browse the different covers, formats, and publication history for this title.
Paperback
Mass Market Paperback
Jan 1981
Ace
ISBN13 9780441696840
ISBN10 0441696848
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Mass Market Paperback
Mar 1985
Ace
ISBN13 9780441696857
ISBN10 0441696856
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Mass Market Paperback
Oct 2000
ROC
ISBN13 9780451452627
ISBN10 0451452623
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Hardcover
Hardcover
Sep 1965
Viking
ISBN13 9780670584420
ISBN10 0670584428
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Hardcover
Sep 1965
Viking
ISBN13 9780670584413
ISBN10 067058441X
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Hardcover
Mar 2008
Baen
ISBN13 9781416555292
ISBN10 1416555293
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