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| geología (2) |
| La Mejicana, mina (Chilecito, La Rioja, Argentina) (2) |
| La Rioja (Argentina) (2) |
| minería (2) |
| 550.8 : 622.1 (825.3) (047) (1) |
| 552.08: 622.2 (825.3) (047) (1) |
| Bello Plano, quebrada (La Rioja, Argentina) (1) |
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