Columbia subject headings:
Naturalism in literature--Themes, motives--Congresses.
Romanticism--Themes, motives--Congresses.
Harvard subject headings:
Nature in literature--Congresses.
Poetry, Modern--Themes, motives--Congresses.
Romanticism--Congresses
Princeton subject headings:
Naturalism in literature--Themes, Motives--Congresses.
Romanticism--Themes, Motives--Congresses.