| 000 | 00423pam a2200133a 44500 | ||
|---|---|---|---|
| 082 |
_aUSBM _bRI-7568 |
||
| 100 | _a | ||
| 245 | 1 | _aTHE USE OF ROCK BOLTS OR WIRE ROPE TO INCREASE THE STRENGTH OF FRACTURED MODEL PILLARS | |
| 260 |
_a _bU. S. Dept. Of The Interior, Bureau Of Mines, [S. L.] _c1971 |
||
| 300 | _a24 | ||
| 500 | _aBound With Usmb Ri-7551-7567,7569-7570,Lack No. 7565 | ||
| 964 | _gCIRC | ||
| 997 | _aTR15240 C | ||
| 999 |
_c400417 _d400417 |
||