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