TY  - BOOK
TI  - An environmental study of artisanal, small and medium mining in Bolivia, Chile, and Peru
T2  - World Bank Technical Paper 
SN  - 0-8213-4428-5
U1  - 338.2 
PY  - 1999///
CY  - Washington D.C.
PB  - The World Bank
KW  - INDUSTRIA DE MINERALES
KW  - ASPECTOS AMBIENTALES
KW  - BOLIVIA
KW  - CHILE
KW  - PERU
KW  - PRODUCCION
ER  -