Columbia subject headings:
Portugal--Antiquities, Roman.
Pottery, Roman--Portugal.
Pottery, Roman--Spain.
Spain--Antiquities, Roman.
Harvard subject headings:
Portugal--Antiquities, Roman.
Pottery, Roman--Portugal.
Pottery, Roman--Spain.
Spain--Antiquities, Roman.
Princeton subject headings:
Portugal--Antiquities, Roman.
Pottery, Roman--Portugal.
Pottery, Roman--Spain.
Spain--Antiquities, Roman.