Columbia subject headings:
Harvard subject headings:
Antiquities, Prehistoric--Europe--Congresses.
Dwellings, Prehistoric--Europe--Congresses.
Iron age--Economic aspects--Europe--Congresses.
La Tène period--Economic aspects--Congresses.
Princeton subject headings:
Antiquities, Prehistoric--Europe--Congresses.
Dwellings, Prehistoric--Europe--Congresses.
Iron age--Economic aspects--Europe--Congresses.
La Tène period--Economic aspects--Congresses.