| 000 | 00351nam a2200121Ia 4500 | ||
|---|---|---|---|
| 008 | 190711s9999 xx 000 0 und d | ||
| 082 | _a622.2 U58 | ||
| 100 | _aU.S.DEPARTMENT OF INTERIOR | ||
| 245 | 0 | _aEVALUATION AND DEMONSTRATION OF UNDERHAND STOPING TO CONTROL ROCK BURSTS | |
| 260 |
_aWashington _bUSDC _c1982 |
||
| 300 | _a28X22 | ||
| 942 |
_cBK _2DDC |
||
| 999 |
_c22441 _d22441 |
||