The Geology of the Oil Regions of Warren, Venango, Clarion, and Butler Counties: Including Surveys of the Garland and Panama Conglomerates in Warren and Crawford, and in Chautauqua Co., N.Y., Descriptions of Oil Well Rigs and Tools, and a Discussion of the Preglacial and Postglacial Drainage of Lake Erie County

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Board of Commissioners, 1880 - 486 Seiten
 

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