Description of the coal flora of the Carboniferous formation in Pennsylvania and throughout the United States ..
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| Description | Harrisburg,Board of Commissioners for the Second Geological Survey,1879-84. | Wellesley College Library (archive. |
| Author/s |
author: Leo Lesquereux |
| Publication date | 1879 |
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| Copyright status |
public domain in United States. |
| Missing/wrong data? | Edit Wikidata item |