Columbia subject headings:
Rome (Italy)--Relations--Italy--Tivoli.
Tivoli (Italy)--Antiquities, Roman.
Tivoli (Italy)--History--To 1500.
Tivoli (Italy)--Relations--Italy--Rome.
Harvard subject headings:
Tivoli (Italy)--Antiquities, Roman.
Tivoli (Italy)--History.
Princeton subject headings:
Rome (Italy)--Relations--Italy--Tivoli.
Tivoli (Italy)--Antiquities, Roman.
Tivoli (Italy)--History--To 1500.
Tivoli (Italy)--Relations--Italy--Rome.