An environmental study of artisanal, small, and medium mining in Bolivia, Chile, and Peru
| Drugi avtorji: | |
|---|---|
| Format: | Knjiga |
| Jezik: | English |
| Izdano: |
Washington, D. C.
World Bank
c1999.
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| Serija: | World Bank technical paper
no. 429 |
| Teme: |


