| Author: | Boreck, D. L. | 
|---|---|
| Year: | 1995 | 
| Document Type: | N/A | 
| Series: | Report of investigations (United States. Bureau of Mines) | 
| Report Number: | Bureau of Mines Report of Investigations 9539 | 
| Subjects: | Sealing (Technology) | 
| Concrete -- Testing. | |
| Mine shafts -- United States. | |
| Link: | https://digital.library.unt.edu/ark:/67531/metadc304110/ |