Columbia subject headings:
Aqueducts--Italy--Rome.
Excavations (Archaeology)--Italy--Rome.
Rome (Italy)--Antiquities.
Harvard subject headings:
Aqueducts--Italy--Rome.
Excavations (Archaeology)--Italy--Rome
Rome (Italy)--Antiquities.
Princeton subject headings:
Aqua Marcia Aqueduct (Rome, Italy)
Excavations (Archaeology)--Italy--Rome.
Rome (Italy)--Antiquities, Roman.
Rome (Italy)--Buildings, structures, etc.