Search Results for the EPA National Library Catalog

Items Found: 5

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Your Search: (SUBJECT=Geology Pennsylvania Butler County.)


Select Item Title Year Published
Geology and hydrology of the Mercer quadrangle, Mercer, Lawrence and Butler Counties, Pennsylvania / 1963
Greater Pittsburgh region construction aggregates / 1974
Greater Pittsburgh region properties and uses of clays and shales / 1976
Oil and gas developments in Pennsylvania in 1971 / 1972
Oil fields of the Greater Pittsburgh region / 1976

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