| Archive Reference / Library Class No. | LS/622.28 |
| Title | The support of the roof in the roadway |
| Date | 1957 |
| Publication Date | 1957 |
| Edition | Revised |
| Author | National Coal Board |
| Repository | Derbyshire Record Office |
| Series | NCB training manual no 5 |
| Sender Location | C21156697 |
| Term | COAL |
| INDUSTRIES |
| Mining equipment |
| Occupational health and safety |
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