Columbia subject headings:
Iron age--Europe--Congresses.
Harvard subject headings:
Antiquities, Prehistoric--Europe--Congresses.
Europe--Antiquities--Congresses.
Europe--Civilization--Congresses.
Excavations (Archaeology)--Europe--Congresses
Iron age--Europe--Congresses.
Land settlement patterns, Prehistoric--Europe--Congresses.
Prehistoric peoples--Europe--Congresses.
Princeton subject headings:
Antiquities, Prehistoric--Europe--Congresses.
Europe--Civilization--Congresses.
Excavations (Archaeology)--Europe--Congresses.
Iron age--Europe--Congresses.
Land settlement patterns, Prehistoric--Europe--Congresses.
Prehistoric peoples--Europe--Congresses.