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Evaluation of Shallow Aquifers in the Helena Valley, Lewis and Clark County, Montana

Joe A. MorelandRobert B. Leonard

出版	U.S. Department of the Interior, Geological Survey, 1980
URL	http://books.google.com.hk/books?id=7qReAAAAIAAJ&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN