Columbia subject headings:
Industries--Italy--Tuscany--History--19th century--Archival resources.
Industries--Italy--Tuscany--History--19th century.
Tuscany (Italy)--Economic conditions--19th century.
Harvard subject headings:
Industries--Italy--Tuscany--History--19th century--Archival resources.
Industries--Italy--Tuscany--History--19th century.
Tuscany (Italy)--Economic conditions--19th century.
Princeton subject headings:
Industries--Italy--Tuscany--History--19th century--Archival resources.
Industries--Italy--Tuscany--History--19th century.
Tuscany (Italy)--Economic conditions--19th century.