Columbia subject headings:
Art, Modern--Congresses.
Civilization, Modern--Congresses.
Pompeii (Extinct city)--In art--Congresses.
Harvard subject headings:
Art, Modern--Congresses.
Civilization, Modern--Congresses
Pompeii (Extinct city)--In art--Congresses.
Princeton subject headings:
Art, Modern--Congresses.
Civilization, Modern--Congresses.
Pompeii (Extinct city)--In art--Congresses.