Hydrogeology of the Helena Valley-fill aquifer system, west-central Montana /

Bibliographic Details
Main Author: Briar, David W.
Corporate Authors: Geological Survey (U.S.), Lewis & Clark City-County Health Dept
Other Authors: Madison, James P.
Format: Government Document Book
Language:English
Published: Helena, Mont. : U.S. Dept. of the Interior, U.S. Geological Survey ; [1992]
Series:Water-resources investigations report ; 92-4023.
Subjects:
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by Briar, David W., Madison, James P.
Published 1992
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