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MICROFORM
Title Water-quality data for two surface coal mines reclaimed with alkaline waste or urban sewage sludge, Clarion County, Pennsylvania, May 1983 through November 1989 [microform] / by Diana L. Dugas, Charles A. Cravotta III, and David A. Saad ; prepared in cooperation with the Pennsylvania Department of Environmental Resources, Bureau of Mining and Reclamation.
Imprint Lemoyne, Pa. : U.S. Geological Survey ; Denver, Colo. : Books and Open-File Reports Section [distributor], 1993.

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LOCATION CALL # STATUS
 GovDocs Federal/Fiche  I 19.76:93-115    AVAILABLE