| Author: | Ash, S. H. |
|---|---|
| Year: | 1950 |
| Document Type: | N/A |
| SUDOC: | I 28.27:7590 |
| Series: | Information circular (United States. Bureau of Mines) |
| Report Number: | I. C. 7590 |
| Subjects: | Mines and mineral resources. |
| Mine fires. | |
| Carbon dioxide. | |
| Link: | http://digital.library.unt.edu/ark:/67531/metadc67056/ |