Washington : United States Department of the Interior, Geological Survey, 1971
Resource Type:
Book
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Additional/Related Title Information
Full Title:
Coal-bearing Upper Pennsylvanian and Lower Permian rocks, Washington area, Pennsylvania / by Henry L. Berryhill, Jr., Stanley P. Schweinfurth, and Bion H. Kent
Series Titles:
Geological Survey professional paper ; 621 Geological Survey professional paper ; 621.