Columbia subject headings:
Elba (Italy)--Antiquities.
Fortification--Italy--Marina di Campo.
Marina di Campo (Italy)--Buildings, structures, etc.
Torre di San Giovanni (Marina di Campo, Italy)
Towers--Conservation and restoration--Italy--Marina di Campo.
Harvard subject headings:
Elba (Italy)--Antiquities.
Fortification--Italy--Marina di Campo.
Marina di Campo (Italy)--Buildings, structures, etc.
Torre di San Giovanni (Marina di Campo, Italy)
Towers--Italy--Marina di Campo--Conservation and restoration.
Princeton subject headings:
Elba (Italy)--Antiquities.
Fortification--Italy--Elba.
Towers--Italy--Elba.