Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910 Part 2. Descriptions of Samples
| Author: | Lord, N. W. |
|---|---|
| Year: | 1913 |
| Document Type: | N/A |
| Issuing Agency: | United States. Bureau of Mines. |
| Series: | United States Bureau of Mines Reports |
| Report Number: | Bulletin 22.2 |
| Link: | https://digital.library.unt.edu/ark:/67531/metadc12240/ |