| Author: | Marek, Ralph Leo, |
|---|---|
| Year: | 1933 |
| Document Type: | USBM |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | C 22.5:551 |
| Series: | Technical paper / United States Department of the Interior, Bureau of Mines ; |
| Report Number: | 551 |
| Subject: | Petroleum industry and trade--Safety measures |
| Link: | https://hdl.handle.net/2027/mdp.39015077315201 |