Columbia subject headings:
Harvard subject headings:
Archaeology, Medieval--Europe, Southern--Congresses.
Archaeology, Medieval--Mediterranean Region--Congresses.
Mediterranean Region--Antiquities--Congresses.
Mines and mineral resources--Africa, North--History--Congresses.
Mines and mineral resources--Europe, Southern--History--Congresses.
Mines and mineral resources--Mediterranean Region--History--Congresses.
Precious metal industries--Africa, North--History--Congresses.
Precious metal industries--Europe, Southern--History--Congresses.
Precious metal industries--Mediterranean Region--History--Congresses.
Princeton subject headings:
Archaeology, Medieval--Mediterranean Region--Congresses.
Mediterranean Region--Antiquities--Congresses.
Mines and mineral resources--Mediterranean Region--History--To 1500--Congresses.
Precious stone industry--Mediterranean Region--History--To 1500--Congresses.