Columbia subject headings:
Harvard subject headings:
Bolivia--History--To 1809--Sources.
Indians of South America--Bolivia--Economic conditions--Sources.
Indians of South America--Peru--Economic conditions--Sources.
Mercury miners--Peru--Huancavelica (Department)--History--Sources.
Mercury mines and mining--Peru--Huancavelica (Department)--History--Sources.
Peru--History--1548-1820--Sources.
Silver miners--Bolivia--Potosí (Department)--History--Sources.
Silver mines and mining--Bolivia--Potosí (Department)--History--Sources.
Princeton subject headings:
Encomiendas (Latin America)
Indians of South America--Bolivia--Potosí (Dept.)--Sources.
Indians of South America--Peru--Huancavelica (Dept.)--Sources.
Mines and mineral resources--Bolivia--History--Sources.
Mines and mineral resources--Peru--History--Sources.