Columbia subject headings:
Harvard subject headings:
Cities and towns, Medieval--Italy--San Vincenzo al Volturno.
San Vincenzo al Volturno (Italy)--History.
Urbanization--Italy--San Vincenzo al Volturno.
Princeton subject headings:
Fortification--Italy, Central.
Italy, Central--History.
San Vincenzo al Volturno (Benedictine Abbey)