Columbia subject headings:
Excavations (Archaeology)--Italy--Portoferraio--History.
Fortification--Italy--Portoferraio--History.
Portoferraio (Italy)--Antiquities.
Harvard subject headings:
Excavations (Archaeology)--Italy--Portoferraio--History.
Fortification--Italy--Portoferraio--History.
Portoferraio (Italy)--Antiquities.
Princeton subject headings:
Castiglione di San Martino Site (Italy)
Elba (Italy)--Antiquities.
Etruscans--Italy--Elba.
Excavations (Archaeology)--Italy--Elba.