Columbia subject headings:
Nationalism--Spain--Congresses.
Regionalism--Spain--Congresses.
Spain--Politics and government--19th century--Congresses.
Spain--Politics and government--20th century--Congresses.
Harvard subject headings:
Nationalism--Spain--Congresses.
Regionalism--Spain--Congresses.
Spain--Politics and government--19th century--Congresses.
Spain--Politics and government--20th century--Congresses.
Princeton subject headings: