A national network of hydrologic bench marks : conservation networks /
| Main Author: | |
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| Corporate Author: | |
| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington :
U.S. Dept. of the Interior, Geological Survey,
1962.
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| Series: | Geological Survey circular ;
460-B. |
| Subjects: |
| Physical Description: | 4 pages : illustrations ; 26 cm. |
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| ISSN: | 0364-6017 |