Columbia subject headings:
Archives--Italy--Florence (Province)
Art--Italy--Florence (Province)--Congresses.
Florence (Italy : Province)--History--Sources.
Harvard subject headings:
Archives--Italy--Florence (Province)
Art--Italy--Florence (Province)--Congresses.
Cultural property--Italy--Florence (Province)--Congresses.
Cultural property--Protection--Italy--Florence--Congresses.
Florence (Italy : Province)--History--Sources.
Princeton subject headings: