Are we alone? : The possibility of extraterrestrial civilizations /
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| Other Authors: | |
| Format: | Book |
| Language: | English |
| Published: |
New York, [N.Y.] :
Scribner,
[1981]
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| Item Description: | Includes index. |
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| Physical Description: | x, 262 pages : illustrations ; 22 cm. |
| ISBN: | 068416826X : |