| 000 | nam a22 7a 4500 | ||
|---|---|---|---|
| 999 |
_c4326 _d4326 |
||
| 003 | Biblioteca-INTEMIN | ||
| 005 | 20180613192741.0 | ||
| 008 | 180613b xxu||||| |||| 00| 0 eng d | ||
| 080 | _a622.807 | ||
| 100 |
_aGreninger, Nevin _92424 |
||
| 245 |
_aMeasurement of incombustible content of coal mine dust samples _cGreninger, Nevin |
||
| 260 |
_aWashington _bBureau of mines _c1988 |
||
| 650 |
_aCONTROL DE POLVO _98617 |
||
| 942 | _cBK | ||