| Author: | Maize, Earl R. |
|---|---|
| Additional Authors: | Greenwald, H. P., Scheffer, T. C. |
| Year: | 1941 |
| Document Type: | BMRA |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.23:3544 |
| Series: | Report of investigations / United States Department of the Interior, Bureau of Mines ; |
| Report Number: | 3544 |
| Subject: | Mine timbering |
| Link: | https://hdl.handle.net/2027/mdp.39015078475632 |