| 000 | 00793nam a2200241 1n4500 | ||
|---|---|---|---|
| 001 | 000146237 | ||
| 005 | 20250722203455.0 | ||
| 008 | 920106s1972 000 0 spa d | ||
| 041 | 0 | 7 |
_aEn _2ISO 639-1 |
| 084 | _aAm.Géol 39g1 | ||
| 245 | 0 | 0 |
_aSurvey of metallic and non metallic minerals, phase 2 : _brepublic of Ecuador : _bThe Puruvin and El Rosario Silver prospects |
| 260 |
_aNueva York : _bUnited nations development programme, _c1972 |
||
| 300 |
_a34 p: : _bcarte, 2 cartes h. t., tab., ann., ann. |
||
| 490 | 0 | _aTechnical report, 15 | |
| 504 | _abibliogr. p. 23, 2 | ||
| 650 | 0 | 4 |
_aGéologie _9516 |
| 650 | 0 | 4 |
_aGéochimie _92482 |
| 650 | 0 | 4 |
_aMinéralisation _96723 |
| 653 | 0 | 5 |
_aEquateur _aCañar |
| 910 | _h1038 | ||
| 942 | _cLIBRO | ||
| 999 |
_c113714 _d113714 |
||