Columbia subject headings:
Family-owned business enterprises--Italy--Milan (Province)--History.
Guilds--Italy--Milan (Province)--History.
Industries--Italy--Milan (Province)--History.
Milan (Italy : Province)--Commerce--History.
Milan (Italy : Province)--Genealogy.
Occupations--Italy--Milan (Province)--History.
Harvard subject headings:
Milan (Italy)--Economic conditions.
Milan (Italy)--Social conditions.
Working class--Italy--Milan--History.
Princeton subject headings:
Family-owned business enterprises--Italy--Milan (Province)--History.
Guilds--Italy--Milan (Province)--History.
Industries--Italy--Milan (Province)--History.
Milan (Italy : Province)--Commerce--History.
Milan (Italy : Province)--Genealogy.
Occupations--Italy--Milan (Province)--History.