| Additional Authors: | Siskind, D. E., Snodgrass, James J., Dick, Richard A., Quiring, John N. | 
|---|---|
| Year: | 1973 | 
| Document Type: | BMRA | 
| Issuing Agency: | U.S. Dept. of Interior, Bureau of Mines, | 
| SUDOC: | I 28.23:7764 | 
| Series: | Report of investigations / United States Department of the Interior, Bureau of Mines ; | 
| Report Number: | 7764 | 
| Subjects: | Blasting | 
| Mining engineering | |
| Mine roof control--Blast effect | |
| Link: | https://hdl.handle.net/2027/mdp.39015078521385 |