00861nam a2200217 4500 1/10090 010122s1999 enk b 00000 eng 0821344285 10427 DLC GR-PeUP 333.8'14 EN Mcmahon, Gary. An environmental study of artisanal, small, and medium mining in Bolivia, Chile, and Peru / Gary Mcmahon...[et al.] Washington: The World bank; 1999 ix, 59 p.: ill.; 30 cm. Includes bibliographical references. Mineral industries Environmental aspects Bolibia. Mineral industries Environmental aspects Chile. Mineral industries Environmental aspects Peru. INST UNIPILB MAIN 20040709 333.8'14 EN 00134122 00134122 LOAN 0 1 /webopac/covers/01/10427_0821344285.jpg