Columbia subject headings:
Literature, Modern--20th century--Bibliography.
Spain--History--Civil War, 1936-1939--Bibliography.
Harvard subject headings:
Literature, Modern--20th century--Bibliography.
Spain--History--Civil War, 1936-1939--Bibliography.
War in literature.
Princeton subject headings:
Literature, Modern--20th century--Bibliography.
Spain--History--Civil War, 1936-1939--Bibliography.