| 000 | 00731nab a2200253 1n4500 | ||
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| 001 | 000103870 | ||
| 005 | 20210221152830.0 | ||
| 008 | 950525s1994 000 0 spa d | ||
| 041 | 0 | 7 |
_aSpa _2ISO 639-1 |
| 084 | _aRev 980 | ||
| 100 | 1 | _aOrbea Peñafiel, Hugo | |
| 245 | 1 | 0 |
_aProtección ambiental en la minería del Ecuador : _banálisis y recomendaciones |
| 650 | 0 | 4 | _aEnvironnement |
| 650 | 0 | 4 | _aProtection environnement |
| 650 | 0 | 4 | _aMine |
| 650 | 0 | 4 | _aAnalyse |
| 650 | 0 | 4 | _aRecommandation |
| 650 | 0 | 4 | _aIndustrie minière |
| 653 | 0 | 5 | _aEquateur |
| 773 | 0 |
_tMinería ecuatoriana _dQuito : [s.n.], 1994 _g3, 1994, p. 45-47 : ill., tab. |
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| 910 |
_aGSL _c20150612 _h1029 |
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| 942 | _cANAL | ||
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