Columbia subject headings:
Literature, Modern--19th century--History and criticism--Congresses.
Literature, Modern--20th century--History and criticism--Congresses.
Naturalism in literature--Congresses.
Harvard subject headings:
Literature, Modern--19th century--History and criticism--Congresses
Literature, Modern--20th century--History and criticism--Congresses
Naturalism in literature--Congresses.
Princeton subject headings:
Naturalism in literature--Congresses.