Columbia subject headings:
Harvard subject headings:
Democracy--Portugal--History--20th century.
Democratization--Portugal--History--20th century.
Government and the press--Portugal--History--20th century.
Journalism--Portugal--History--20th century.
Mass media--Political aspects--Portugal--History--20th century.
Mass media--Political aspects--Portugal.
Portugal--History--1910-1974.
Portugal--History--1974-
Princeton subject headings:
Democratization--Portugal--History--20th century.
Government and the press--Portugal--History--20th century.
Portugal--History--20th century.
Press and politics--Portugal--History--20th century.