Columbia subject headings:
Alentejo (Portugal)--Economic conditions.
Elite (Social sciences)--Portugal--Alentejo--History.
Industries--Portugal--Alentejo--History.
Harvard subject headings:
Alentejo (Portugal)--Economic conditions--20th century.
Alentejo (Portugal)--History--20th century.
Elite (Social sciences)--Portugal--Alentejo--History--20th century.
Industries--Portugal--Alentejo--History--20th century.
Princeton subject headings:
Alentejo (Portugal)--Economic conditions.
Elite (Social sciences)--Portugal--Alentejo--History.
Industries--Portugal--Alentejo--History.