| 000 | nam a22 7a 4500 | ||
|---|---|---|---|
| 999 |
_c3991 _d3991 |
||
| 003 | Biblioteca INTEMIN | ||
| 005 | 20180604153736.0 | ||
| 007 | ta | ||
| 008 | 180527b xxu||||| |||| 00| 0 eng d | ||
| 041 | _ainglés | ||
| 080 | _a622 | ||
| 100 |
_aGuidotti, Ronald A. _93547 |
||
| 245 |
_aNitride intermediates in the preparation of columbium, vanadium, and tantalum metals (in two parts) : 2. thermal decomposition of the nitrides _cGuidotti, Ronald A.; Kesterke, D. G.; Atkinson, G. B. |
||
| 260 |
_aWashington _bBureau of mines _c1976 |
||
| 300 | _a15 p. | ||
| 440 |
_aRI 8103 _97181 |
||
| 650 |
_aMINERIA _93338 |
||
| 650 |
_aMINING _92163 |
||
| 653 | _aTANTALO | ||
| 653 | _aVANADIO | ||
| 653 | _aNIOBIO | ||
| 653 | _aNITRUROS | ||
| 653 | _aTANTALUM | ||
| 653 | _aVANADIUM | ||
| 653 | _aNIOBIUM | ||
| 653 | _aNITRIDES | ||
| 700 |
_aKesterke, D. G. _98157 |
||
| 700 |
_aAtkinson, G. B. _98209 |
||
| 942 |
_2udc _cCR |
||