Columbia subject headings:
Copper age--Italy--Congresses.
Excavations (Archaeology)--Italy--Congresses.
Italy--Antiquities--Congresses.
Harvard subject headings:
Antiquities, Prehistoric--Italy--Congresses.
Copper age--Italy--Congresses.
Italy--Antiquities--Congresses.
Princeton subject headings:
Copper age--Italy--Congresses.
Excavations (Archaeology)--Italy--Congresses.
Italy--Antiquities--Congresses.