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Geochemical evolution of water in the Madison Aquifer in parts of Montana, South Dakota, and Wyoming geology and hydrology of the Madison Limestone and associated rocks in parts of Montana, Nebraska, North Dakota, South Dakota, and Wyoming

Washington U.S. G.P.O. 1991 .
v, 89 p.

Washington | Denver, CO U.S. G.P.O. | For sale by the Books and Open-File Section, U.S. Geological Survey 1994 .
p. cm.