TY - BOOK
AU - McMahon, Gary
TI - An environmental study of artisanal, small, and medium mining in Bolivia, Chile, and Peru
PB - World Bank
PY - 1999
T2 - World Bank technical paper
VL - no. 429
EP - ix, 61 p.
UR - https://ci.nii.ac.jp/ncid/BA42149751
SN - 0821344285
ER -