Columbia subject headings:
Harvard subject headings:
Europe--Intellectual life--20th century--Congresses.
Literature, Modern--20th century--History and criticism--Congresses
Spain--History--Civil War, 1936-1939--Literature and the war--Congresses.
Princeton subject headings:
Spain--History--Civil War, 1936-1939--Foreign public opinion--Congresses.
Spain--History--Civil War, 1936-1939--Literature and the war--Congresses.