Columbia subject headings:
Harvard subject headings:
Portugal--Armed Forces--Political activity--History--20th century.
Portugal--History--Coup d'état, 1975
Portugal. Armada--History--20th century.
Princeton subject headings:
Portugal--Armed Forces--Political activity--History--20th century.
Portugal--History--Coup d'état, 1975.
Portugal. Armada--History--20th century.