| 000 | nam a22 7a 4500 | ||
|---|---|---|---|
| 999 |
_c3621 _d3621 |
||
| 003 | Biblioteca INTEMIN | ||
| 005 | 20180530105017.0 | ||
| 007 | ta | ||
| 008 | 180527b xxu||||| |||| 00| 0 eng d | ||
| 041 | _ainglés | ||
| 080 | _a622 | ||
| 100 |
_aPoppleton, Howard O. _93547 |
||
| 245 |
_aPreliminary investigation of desilication of minerals with sulfur and carbon _cPoppleton, Howard O.; Campbell, Thomas T. |
||
| 260 |
_aWashington _bBureau of mines _c1974 |
||
| 300 | _a8 p. | ||
| 440 |
_aRI 7950 _97181 |
||
| 650 |
_aMINERIA _93338 |
||
| 650 |
_aMINING _92163 |
||
| 653 | _aMINERALES DE ALUMINIO | ||
| 653 | _aMINERALES DE SILICATO | ||
| 653 | _aALUMINIUM ORES | ||
| 653 | _aSILICATE ORES | ||
| 700 |
_aCampbell, Thomas T. _97731 |
||
| 942 |
_2udc _cCR |
||