Search Results for the EPA National Library Catalog

Items Found: 7

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Your Search: (AUTHOR=Wagner AND Walter AND Richard)


Select Item Title Year Published
Geology of Pennsylvania's oil and gas / 1968
Geology of the Pittsburgh area / 1970
Greater Pittsburgh region geologic map. 1975
Greater Pittsburgh region: Structure contour ma of Allegheny, Armstrong, Beaver, Butler, Washington, and Westmoreland Counties. 1975
Oil and gas developments in Pennsylvania in 1961 / 1962
Stratigraphy of the Cambrian to Middle Ordovician rocks of central and western Pennsylvania, 1966
The petroleum industry and the future petroleum province in Pennsylvania, 1970 / 1970

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