Rongo Univesity Library

Subject(s): Silver mines and mining -- Bolivia -- Potos�i (Dept.) -- History. | Silver mines and mining -- Health aspects -- Bolivia -- Potos�i (Dept.) | Silver mines and mining -- Environmental aspects -- Bolivia -- Potos�i (Dept.) | Mercury mines and mining -- Peru -- Huancavelica -- History. | Mercury mines and mining -- Health aspects -- Peru -- Huancavelica. | Mercury mines and mining -- Environmental aspects -- Peru -- Huancavelica. | Indians, Treatment of -- Bolivia -- Potos�i (Dept.) -- History. | Indians, Treatment of -- Peru -- Huancavelica -- History. | Environmental degradation -- Bolivia -- Potos�i (Dept.) | Environmental degradation -- Peru -- Huancavelica. | Electronic books.