| Author: | Herbert, C. A. |
|---|---|
| Additional Authors: | Gallagher, W. A. |
| Year: | 1949 |
| Document Type: | N/A |
| SUDOC: | I 28.27:7491 |
| Series: | Information circular (United States. Bureau of Mines) |
| Report Number: | I. C. 7491 |
| Subject: | Coal mine accidents -- Indiana. |
| Link: | http://digital.library.unt.edu/ark:/67531/metadc67041/ |