KLIGERMAN, D.C., ROVERE, E.L.L. & COSTA, M.A. 2001. Management Challenges on Small-Scale Gold Mining Activities in Brazil. Environmental Research 87 (3): 181-198
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KLIGERMAN, D.C., ROVERE, E.L.L. & COSTA, M.A. 2001. Management Challenges on Small-Scale Gold Mining Activities in Brazil. Environmental Research 87 (3): 181-198
