Columbia subject headings:
Industries--Italy--Sarno.
Silk industry--Italy--Sarno.
Harvard subject headings:
Architecture, Industrial--Italy--Sarno.
Industrial archaeology--Italy--Sarno.
Sarno (Italy)--Buildings, structures, etc.
Sarno (Italy)--History.
Princeton subject headings:
Sarno (Italy)--Economic conditions.
Silk industry--Italy--Sarno.