Columbia subject headings:
Harvard subject headings:
Art, French--19th century--Congresses.
Art, Modern--19th century--France--Congresses.
France--Civilization--1830-1900--Congresses.
French literature--19th century--History and criticism--Congresses
Princeton subject headings:
Art, French--19th century--Congresses.
France--Civilization--1830-1900--Congresses.
French literature--19th century--History and criticism--Congresses.