Columbia subject headings:
Archaeology--Political aspects--Congresses.
Archaeology--Political aspects--United States--Congresses.
Archaeology--Social aspects--Congresses.
Archaeology--Social aspects--United States--Congresses.
Harvard subject headings:
Archaeology--Political aspects--Congresses.
Archaeology--Political aspects--United States--Congresses.
Archaeology--Social aspects--Congresses.
Archaeology--Social aspects--United States--Congresses.
Princeton subject headings:
Archaeology--Political aspects--Congresses.
Archaeology--Political aspects--United States--Congresses.
Archaeology--Social aspects--Congresses.
Archaeology--Social aspects--United States--Congresses.