Coal : a complex natural resource ; an overview of factors affecting coal quality and use in the United States / by Stanley P- Schweinfurth
Gardado en:
| Superior document: | US Geological Survey circular 1143 |
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| VerfasserIn: | |
| Place / Publishing House: | Washington : United States Government Print. Office, 2003 |
| Year of Publication: | 2003 |
| Idioma: | English |
| Series: | US Geological Survey circular
1143 |
| Descrición Física: | VI, 39 S.; Ill., graph. Darst., Kt. |
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