Columbia subject headings:
Art, Modern--19th century--Exhibitions.
Art, Modern--20th century--Exhibitions.
Art--Exhibitions--History--19th century.
Art--Exhibitions--History--20th century.
Harvard subject headings:
Art--Exhibitions--History--19th century.
Art--Exhibitions--History--20th century.
Princeton subject headings:
Art, Modern--19th century--Exhibitions.
Art, Modern--20th century--Exhibitions.
Art--Exhibitions--History--19th century.
Art--Exhibitions--History--20th century.