Columbia subject headings:
Harvard subject headings:
Dictatorship--Portugal--History--20th century.
Political persecution--Portugal--History--20th century.
Portugal--Politics and government--1933-1974
Victims of state-sponsored terrorism--Portugal--Algarve--History--20th century.
Princeton subject headings:
Political persecution--Portugal--History--20th century.
Portugal--Politics and government--1933-1974.