Coal resources of Beaver County, Pennsylvania /
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Coal resources of Beaver County, Pennsylvania /

Bibliographic Details
Main Author: Patterson, E. D. (Author)
Format: Government Document Online Book
Language:English
Published: Washington, D.C. : United States Department of the Interior, Geological Survey, 1963.
Series:Geological Survey bulletin ; 1143-A.
Coal resources of western Pennsylvania.
Subjects:
Access:ONLINE VERSION
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