| 000 | nam a22 7a 4500 | ||
|---|---|---|---|
| 999 |
_c1848 _d1848 |
||
| 003 | Biblioteca-INTEMIN | ||
| 005 | 20180514184657.0 | ||
| 008 | 180514b xxu||||| |||| 00| 0 eng d | ||
| 080 | _a622 | ||
| 100 |
_aSchlick, D.P. _95081 |
||
| 245 |
_aRespirable dust control in the mines of West Germany _cSchlick, D.P. |
||
| 260 |
_aWashington _bBureau of mines _c1970 |
||
| 650 |
_aMINERIA _965 |
||
| 651 |
_aALEMANIA _95082 |
||
| 942 | _cBK | ||