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Quarterly of the Colorado School of Mines
Colorado School of Mines - Golden, Colo. : Colorado School of Mines - 1.1906/07 - 73.1978,2
Persistent link: https://www.econbiz.de/10009509086
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Report / Missouri Bureau of Geology and Mines
Missouri <Staat> / Bureau of Geology and Mines - Jefferson City, Miss. - 1.1891 - 13.1900; 2.Ser. 1.1903 - 24.1930
Persistent link: https://www.econbiz.de/10010407172
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Bulletin / State of Illinois, Department of Registration and Education, Division of the State Geological Survey
Illinois State Geological Survey - Urbana, Ill. - Nr. 1.1906 -
Persistent link: https://www.econbiz.de/10010446000