Columbia subject headings:
Harvard subject headings:
Investments, European--Argentina--Santiago del Estero (Province)--History.
Lumber trade--Argentina--Santiago del Estero (Province)--History.
Quebracho.
Railroads--Argentina--Santiago del Estero (Province)--History.
Princeton subject headings:
Clearcutting--Argentina.
Santiago del Estero (Argentina)--Economic conditioins.
Santiago del Estero (Argentina)--History.
Wood-pulp industry--Argentina--Santiago del Estero.