Columbia subject headings:
Architecture--Italy--Brenta River Region--Congresses.
Gardens--Italy--Brenta River Region--Congresses.
Parks--Italy--Brenta River Region--Congresses.
Harvard subject headings:
Architecture--Italy--Brenta River Region--Congresses.
Gardens--Italy--Brenta River Region--Congresses.
Parks--Italy--Brenta River Region--Congresses.
Princeton subject headings:
Architecture--Italy--Brenta River Region--Congresses.
Gardens--Italy--Brenta River Region--Congresses.
Parks--Italy--Brenta River Region--Congresses.