Hydrogeology of the Helena Valley-fill aquifer system, west-central Montana /
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| Corporate Authors: | , |
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| Format: | Government Document Book |
| Language: | English |
| Published: |
Helena, Mont. :
U.S. Dept. of the Interior, U.S. Geological Survey ;
[1992]
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| Series: | Water-resources investigations report ;
92-4023. |
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| Item Description: | Shipping list number: 92-0371-P. "April 1992." Chiefly tables. One map on 1 folded leaf in pocket. |
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| Physical Description: | v, 92 pages : illustrations, maps ; 28 cm. |
| Bibliography: | Includes bibliographical references (pages 38-41). |