The Permian or Upper Carboniferous flora of West Virginia and S.W. Pennsylvania
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| Description | Harrisburg,Pub. by the Board of Commissioners for the Second Geological Survey,1880. | We |
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| Publication date | 1880 |
| Language | English |
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| Copyright status |
public domain in countries with 80 years pma or shorter. public domain in United States. |
| Missing/wrong data? | Edit Wikidata item |