Columbia subject headings:
Harvard subject headings:
Cultural property--Protection--Europe--Congresses.
Europe--Antiquities--Collection and preservation--Congresses.
Water-saturated sites (Archaeology)--Europe--Congresses.
Wetland management--Europe--Congresses.
Princeton subject headings:
Cultural property--Protection--Europe--Congresses.
Europe--Antiquities--Collection and preservation--Congresses.
Water-saturated sites (Archaeology)--Europe--Congresses.
Wetland management--Europe--Congresses.