Columbia subject headings:
Harvard subject headings:
Independent regulatory commissions--Spain--History--20th century.
Labor laws and legislation--Spain
Labor movement--Spain--History--20th century.
Labor policy--Spain
Labor unions--Spain--History--20th century.
Princeton subject headings:
Confederación Sindical de Comisiones Obreras.
Labor unions--Spain--History.
Spain--Politics and government--1939-1975.
Spain--Politics and government--1975-.