Columbia subject headings:
Ampurias (Spain)--Antiquities, Roman.
Hydraulic engineering--Spain--Ampurias--History.
Harvard subject headings:
Ampurias (Spain)--Antiquities.
Hydraulic engineering--Spain--Ampurias.
Princeton subject headings:
Ampurias (Spain)--Antiquities, Roman.
Hydraulic engineering--Spain--Ampurias--History.