자료유형 | 단행본 |
---|---|
단체저자명 | Department of Health and Human Services.; |
서명/저자사항 | Roof Bolting Machine Operator Skills Training for a Walk-Thru Roof Bolter: Trainer's Guide /Department of Health and Human Services |
발행사항 | United States:NIOSH,2006 |
형태사항 | 면수복잡,28cm |
총서사항 | IC;9489 |