| 000 | nam a22 7a 4500 | ||
|---|---|---|---|
| 999 |
_c4177 _d4177 |
||
| 003 | Biblioteca-INTEMIN | ||
| 005 | 20180607173123.0 | ||
| 008 | 180607b xxu||||| |||| 00| 0 eng d | ||
| 080 | _a622.06 | ||
| 100 |
_aRadcliffe, Daryl E. _91021 |
||
| 245 |
_aContinuous recorder to monitor mine roof displacement (BM-TPR 104) _cRadcliffe, Daryl E. |
||
| 260 |
_aWashington _bBureau of mines _c1977 |
||
| 650 |
_aTECNOLOGIA MINERA _95207 |
||
| 942 | _cBK | ||