
The Origin of Pennsylvania Coal
Preliminary reports on the geology of Pennsylvania.
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Metadata
Work Title | The Origin of Pennsylvania Coal |
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Subtitle | PAGS Progress Report no.8 |
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Creators |
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License | CC BY-NC-ND 4.0 (Attribution-NonCommercial-NoDerivatives) |
Work Type | Book |
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Publication Date | May 30, 1920 |
Deposited | September 25, 2014 |