Columbia subject headings:
Europe--Antiquities--Congresses.
Monte Poggiolo Site (Italy)--Congresses.
Paleolithic period--Italy--Romagna--Congresses.
Prehistoric peoples--Europe--Congresses.
Romagna (Italy)--Antiquities--Congresses.
Harvard subject headings:
Italy--Antiquities--Congresses.
Prehistoric peoples--Italy--Congresses.
Stone age--Italy--Congresses.
Princeton subject headings:
Italy--Antiquities--Congresses.
Prehistoric peoples--Italy--Congresses.
Stone age--Italy--Congresses.