Centers of population of learned groups.
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| Title: | Centers of population of learned groups. |
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| Authors: | Read, C. B. |
| Source: | Science; July 21 1939, Vol. 90, p61-63, 3p |
| Database: | Applied Science & Technology Source |
| ISSN: | 00368075 |
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| DOI: | 10.1126/science.90.2325.61 |
