Columbia subject headings:
Harvard subject headings:
Argentina--Economic conditions
Argentina--History.
Bolivia--Economic conditions.
Bolivia--History.
Chile--Economic conditions.
Chile--History.
Princeton subject headings:
Argentina--Commerce--Chile--History.
Bolivia--Boundaries--Chile.
Chile saltpeter industry--Chile--History.
Chile--Boundaries--Bolivia.
Chile--Commerce--Argentina--History.
Chile--Commerce--History.
Violence--Chile--History.