Columbia subject headings:
Andria (Italy)--Buildings, structures, etc.
Castles--Italy--Andria--History.
City walls--Italy--Andria--History.
Harvard subject headings:
Andria (Italy)--Buildings, structures, etc.
Andria (Italy)--History.
Princeton subject headings:
Andria (Italy)--Buildings, structures, etc.
Andria (Italy)--History.