Columbia subject headings:
Police--Spain--History--20th century.
Political persecution--Spain--History--20th century.
Spain--Politics and government--1939-1975.
Spain. Brigada Social--History.
Harvard subject headings:
Princeton subject headings:
Police--Spain--History--20th century.
Political persecution--Spain--History--20th century.
Spain--Politics and government--1939-1975.
Spain. Brigada Social--History.