 |
|
Causes of Roof-Fall Fatalities in Anthracite and Bituminous-Coal Mines, 1955 and 1956
| Author: | Joseph, R. D. |
|---|---|
| Year: | 1958 |
| Document Type: | N/A |
| SUDOC: | I 28.27:7869 |
| Series: | Information circular (United States. Bureau of Mines) |
| Report Number: | I. C. 7869 |
| Subjects: | Mine accidents -- United States. |
| Mine roof control. | |
| Link: | http://digital.library.unt.edu/ark:/67531/metadc67081/ |
Search developed and maintained by the University of Washington Libraries
Copyright 2010