| Author: | Frazer, J. C. W. |
|---|---|
| Year: | 1912 |
| Document Type: | N/A |
| SUDOC: | I 28.7:5 |
| Series: | United States Bureau of Mines Reports |
| Report Number: | Techical Paper 5 |
| Subjects: | Chemistry. |
| Coal -- Analysis. | |
| Coal mines and mining. | |
| Link: | http://digital.library.unt.edu/ark:/67531/metadc66412/ |