Columbia subject headings:
Cultural property--Protection--Italy--Congresses.
Cultural property--Protection--Italy--Puglia--Congresses.
Landscape protection--Italy--Congresses.
Landscape protection--Italy--Puglia--Congresses.
Harvard subject headings:
Cultural property--Protection--Italy--Congresses
Cultural property--Protection--Italy--Puglia--Congresses.
Landscape protection--Italy--Congresses.
Landscape protection--Italy--Puglia--Congresses.
Princeton subject headings: