Columbia subject headings:
Industries--Italy--Reggio Emilia--History--20th century.
Reggio Emilia (Italy)--Economic conditions--20th century.
Harvard subject headings:
Industries--Italy--Reggio Emilia--History--20th century.
Reggio Emilia (Italy)--Economic conditions--20th century.
Princeton subject headings:
Industries--Italy--Reggio Emilia--History--20th century.
Reggio Emilia (Italy)--Economic conditions--20th century.