Columbia subject headings:
Excavations (Archaeology)--Spain--Tarragona--Exhibitions.
Tarragona (Spain)--Antiquities--Exhibitions.
Water-supply engineering--Spain--Tarragona--Exhibitions.
Water-supply--Spain--Tarragona--Exhibitions.
Harvard subject headings:
Princeton subject headings:
Excavations (Archaeology)--Spain--Tarragona--Exhibitions.
Tarragona (Spain)--Antiquities--Exhibitions.
Water-supply engineering--Spain--Tarragona--Exhibitions.
Water-supply--Spain--Tarragona--Exhibitions..