Columbia subject headings:
Excavations (Archaeology)--Italy--Palestrina--Congresses.
Palestrina (Italy)--Antiquities--Congresses.
Harvard subject headings:
Excavations (Archaeology)--Italy--Palestrina--Congresses.
Palestrina (Italy)--Antiquities--Congresses.
Princeton subject headings:
Excavations (Archaeology)--Italy--Palestrina--Congresses.
Palestrina (Italy)--Antiquities--Congresses.