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Mineral and water resources of Colorado
Allott, Gordon (contributor) - 1964
Persistent link: https://www.econbiz.de/10003191865
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Mineral and water resources of Oregon
Hatfield, Mark O. (contributor) - 1969
Persistent link: https://www.econbiz.de/10003191934
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Mineral and water resources of South Dakota
McGovern, George (contributor) - 1964
Persistent link: https://www.econbiz.de/10003191949