Columbia subject headings:
Mines and mineral resources--Portugal--Catalogs.
Mines and mineral resources--Spain--Catalogs.
Portugal--Antiquities--Catalogs.
Spain--Antiquities--Catalogs.
Harvard subject headings:
Mineral industries, Prehistoric--Portugal--Directories.
Mineral industries, Prehistoric--Spain--Directories.
Mines and mineral resources--Spain.
Portugal--Antiquities.
Spain--Antiquities.
Princeton subject headings:
Mineral industries, Prehistoric--Portugal.
Mineral industries, Prehistoric--Spain.
Mineral industries--Portugal.
Mineral industries--Spain.
Portugal--Antiquities.
Spain--Antiquities.