Columbia subject headings:
Refuse and refuse disposal--Italy--Naples--History.
Sanitation--Italy--Naples--History.
Street cleaning--Italy--Naples--History.
Sustainable urban development--Italy--Naples.
Harvard subject headings:
City planning--Italy--Naples--19th century.
City planning--Italy--Naples--20th century.
City planning--Italy--Naples--21st century.
Urban renewal--Italy--Naples--19th century.
Urban renewal--Italy--Naples--20thh century.
Urban renewal--Italy--Naples--21st century.
Princeton subject headings:
City planning--Italy--Naples--19th century.
City planning--Italy--Naples--20th century.
City planning--Italy--Naples--21st century.
Urban renewal--Italy--Naples--19th century.
Urban renewal--Italy--Naples--20th century.
Urban renewal--Italy--Naples--21st century.