| Author: | Barkley, J. F. |
|---|---|
| Additional Authors: | Burdick, L. R. |
| Year: | 1953 |
| Document Type: | N/A |
| SUDOC: | I 28.23:4936 |
| Series: | United States Bureau of Mines Reports |
| Report Number: | R. I. 4936 |
| Subjects: | Anthracite coal industry. |
| Anthratube testing. | |
| Anthratube testing methods. | |
| Link: | http://digital.library.unt.edu/ark:/67531/metadc38592/ |