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High-Sulfur Pittsburgh Coal: Upgrading in Southwestern Pennsylvania and Northern West Virginia
From Summary and Conclusions: "This report deals with upgrading to metal-lurgical standards of large reserves of high-sulfur Pittsburgh coal remaining in southwestern Pennsylvania and northern West Virginia."
Date:
1950
Creator:
Fraser, Thomas; Crentz, W. L. & Bailey, A. L.
System:
The UNT Digital Library