Columbia subject headings:
Social movements--Spain--History--20th century.
Women labor union members--Spain--History--20th century.
Women--Political activity--Spain--History--20th century.
Harvard subject headings:
Social movements--Spain--History--20th century.
Women labor union members--Spain--History--20th century.
Women--Political activity--Spain--History--20th century.
Princeton subject headings:
Social movements--Spain--History--20th century.
Women labor union members--Spain--History--20th century.
Women--Political activity--Spain--History--20th century.