TY  - BOOK
AU  - McMahon, Gray, et al.
AU  - Evia, Jose Luis
AU  - Posco-Font, Alberto
AU  - Sanchez, Jose Miguel
TI  - Environmental study of artisanal, small, and medium mining in Bolivia, Chile, and Peru
SN  - 0821344285
U1  - 333.8140 
PY  - 1999///
CY  - Washington, D.C
PB  - World Bank
KW  - Mining
N1  - Includes bibliographical references
ER  -