Mineral resorces of Johnstown, Pennsylvania and vicinity
Series: U.S. Geological Survey bulletin, no. 447
Phalen, William Clifton, 1877- Martin, Lawrence, 1880-1955 Pennsylvania. Bureau of Topographic and Geologic Survey.
Book
Published material
Washington, Government Printing Office, 1911
Coal mines and mining , Mines and mineral resorces , Pennsylvania
QE75 .B9 no.447
English
DOI: https://doi.org/10.5962/bhl.title.119871 OCLC: 4863087 Wikidata: https://www.wikidata.org/entity/Q51396214
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