Columbia subject headings:
Banks and banking--Spain--History--Congresses.
Catalonia (Spain)--History--Autonomy and independence movements--Congresses.
Social conflict--Spain--History--Congresses.
Spain--Economic policy--Congresses.
Spain--Politics and government--20th century--Congresses.
Technological innovations--Economic aspects--Spain--History--Congresses.
Harvard subject headings:
Banks and banking--Spain--History--Congresses.
Catalonia (Spain)--History--Autonomy and independence movements--Congresses.
Catalonia (Spain)--History--Congresses.
Social conflict--Spain--History--Congresses.
Spain--Economic policy--Congresses.
Spain--Politics and government--20th century--Congresses.
Technological innovations--Economic aspects--Spain--History--Congresses.
Princeton subject headings:
Spain--Economic conditions.
Spain--Politics and government.
Spain--Social conditions.