Columbia subject headings:
Antiquities--Collection and preservation--Congresses.
Archaeological chemistry--Congresses.
Cultural property--Protection--Congresses.
Harvard subject headings:
Antiquities--Collection and preservation--Congresses
Archaeological chemistry--Congresses.
Cultural property--Protection--Congresses
Princeton subject headings:
Antiquities--Collection and preservation--Congresses.
Archaeological chemistry--Congresses.
Cultural property--Protection--Congresses.