Coal and coke resource analysis : western Pennsylvania, northern West Virginia /
Corporate Authors: | America's Industrial Heritage Project, United States. National Park Service. Denver Service Center |
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Format: | Government Document Microform Book |
Language: | English |
Published: |
[Denver, Colo.?] :
U.S. Dept. of the Interior, National Park Service, Denver Service Center,
[1992]
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Subjects: |