Columbia subject headings:
Ardea (Italy)--Antiquities.
Ardea (Italy)--History.
Excavations (Archaeology)--Italy--Ardea.
Harvard subject headings:
Ardea (Italy)--Antiquities.
Ardea (Italy)--Description and travel.
Ardea (Italy)--History.
Excavations (Archaeology)--Italy--Ardea.
Princeton subject headings:
Ardea (Italy)--Antiquities.
Ardea (Italy)--History.
Excavations (Archaeology)--Italy--Ardea.