Columbia subject headings:
Cultural property--Protection--Spain--History--20th century--Congresses.
Spain--History--Civil War, 1936-1939--Art and the war--Congresses.
Harvard subject headings:
Cultural property--Protection--Spain--History--20th century--Congresses.
Spain--History--Civil War, 1936-1939--Art and the war--Congresses.
Princeton subject headings: