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Primary view of Sediment Discharge from an Area of Highway Construction, Applemans Run Basin, Columbia County, Pennsylvannia
Eckhardt, David A. V.
October 1976
Primary view of Inundated Anthracite Reserves: Eastern Middle Field of Pennsylvania
Ash, S. H. (Simon Harry), b. 1889; Kynor, H. D.; Fatzinger, R. W.; Davies, B. S. & Gilbert, J. C.
1950
Primary view of Surface-Water Seepage into Anthracite Mines in the Western Middle Field: Anthracite Region of Pennsylvania
Ash, S. H. (Simon Harry), b. 1889 & Link, H. B.
1953
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