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Bentonite deposits of the Northern Black hills district Wyoming, Montana, and South Dakota / by Maxwell M. Knechtel and Sam H. Patterson.

By: Knechtel, Maxwell M, 1897-1984.
Contributor(s): Patterson, Sam H, 1918-2004.
Material type: materialTypeLabelBookSeries: Geological Survey Bulletin; 1082-M.Publisher: Washington : United States Government Printing Office, 1962Description: P. 893-1030 + map. --.Content type: Texto (visual) Media type: sin mediación Subject(s): Bentonita | Estados Unidos | Yacimientos de arcilla
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