Columbia subject headings:
Reality in art--Congresses.
Reality in literature--Congresses.
Reality--Congresses.
Harvard subject headings:
Aesthetics--History--Congresses.
Arts, Modern--Philosophy--Congresses.
Arts--History--Congresses.
Philosophy, Modern--Congresses.
Realism--History--Congresses.
Science--History--Congresses
Princeton subject headings: