| LDR | 00606camk 00157 k 4500 | |
|---|---|---|
| 001 | 000000038031 | |
| 005 | 20031120133403 | |
| 008 | 031120s1984 us 000a eng | |
| 049 | ▼l WM00005883 | |
| 056 | ▼a 530.982 | |
| 090 | ▼a 530.982 ▼b U84m | |
| 110 | ▼a U.S. Department of Labor Mine Safety and Health Administration. | |
| 245 | 10 | ▼a MSHA's Procedure for Determining Quartz Content of Respirable Coal Mine Dust / ▼d U.S. Department of Labor Mine Safety and Health Administration |
| 260 | ▼a United States: ▼b U.S. Department of Labor Mine Safety and Health Administration, ▼c 1984 | |
| 300 | ▼a 13p, ▼c 28cm | |
| 950 | 0 | ▼a 기증 |