| Author: | Carpenter, Charles B. |
|---|---|
| Year: | 1937 |
| Document Type: | N/A |
| SUDOC: | I 28.27:6938 |
| Series: | Information circular (United States. Bureau of Mines) |
| Report Number: | I. C. 6938 |
| Subject: | Petroleum industry and trade -- Safety measures. |
| Link: | http://digital.library.unt.edu/ark:/67531/metadc67015/ |