Columbia subject headings:
Cultural property--Environmental aspects--Italy--Mantua.
Cultural property--Protection--Technological innovations--Italy--Mantua.
Mantua (Italy)--Buildings, structures, etc.--Conservation and restoration.
Urban renewal--Italy--Mantua.
Harvard subject headings:
Cultural property--Environmental aspects--Italy--Mantua.
Cultural property--Protection--Technological innovations--Italy--Mantua.
Mantua (Italy)--Buildings, structures, etc.--Conservation and restoration.
Urban renewal--Italy--Mantua.
Princeton subject headings: