Columbia subject headings:
Archaeological geology--Congresses.
Excavations (Archaeology)--Congresses.
Harvard subject headings:
Archaeological geology--Congresses.
Archaeology--Field work--Congresses.
Archaeology--Methodology--Congresses
Excavations (Archaeology)--Congresses
Excavations (Archaeology)--Recording--Congresses.
Princeton subject headings:
Archaeology--Methodology--Congresses.