
Coal Reserves in Allegheny County, Pennsylvania
Preliminary report on the geology of Pennsylvania.
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Metadata
Work Title | Coal Reserves in Allegheny County, Pennsylvania |
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Subtitle | PAGS Progress Report no.31 |
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License | CC BY-NC-ND 4.0 (Attribution-NonCommercial-NoDerivatives) |
Work Type | Book |
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Publication Date | April 18, 1922 |
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Deposited | September 24, 2014 |