We are not alone ; the search for intelligent life on other worlds.
| Main Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
New York :
McGraw-Hill,
[1964]
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| Subjects: |
| Physical Description: | xi, 325 pages : illustrations ; 21 cm. |
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| Bibliography: | Bibliography: pages 292-310. |