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Atlas of Pennsylvania coal and coal mining
Deasy, George F.; Griess, Phyllis R. - 1960
Persistent link: https://www.econbiz.de/10002073103
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Bituminous coal
Deasy, George F.; Griess, Phyllis R. - 1960
Persistent link: https://www.econbiz.de/10002073114
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Anthracite
Deasy, George F.; Griess, Phyllis R. - 1963
Persistent link: https://www.econbiz.de/10002073119
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Atlas of Pennsylvania's mineral resources
Deasy, George F.; Griess, Phyllis R.; Balazik, Ronald F. - 1967
Persistent link: https://www.econbiz.de/10003047925
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Supplement, limestones and dolomites of Pennsylvania
Deasy, George F.; Griess, Phyllis R.; Balazik, Ronald F. - 1967
Persistent link: https://www.econbiz.de/10003047939