Columbia subject headings:
City planning--Environmental aspects--Italy--Padua.
Urban ecology (Biology)--Italy--Padua.
Urban landscape architecture--Italy--Padua.
Urban parks--Italy--Padua.
Harvard subject headings:
City planning--Environmental aspects--Italy--Padua.
Greenbelts--Italy--Padua.
Open spaces--Italy--Padua.
Sustainable architecture--Italy--Padua.
Princeton subject headings: