Columbia subject headings:
France--Emigration and immigration--History--18th century.
France--Emigration and immigration--History--19th century.
French--Italy--Naples--History--18th century.
French--Italy--Naples--History--19th century.
Naples (Italy)--Emigration and immigration--History--18th century.
Naples (Italy)--Emigration and immigration--History--19th century.
Harvard subject headings:
France--Emigration and immigration--History--18th century.
France--Emigration and immigration--History--19th century.
French--Italy--Naples--History--18th century.
French--Italy--Naples--History--19th century.
Naples (Italy)--Emigration and immigration--History--18th century.
Naples (Italy)--Emigration and immigration--History--19th century.
Princeton subject headings:
France--Emigration and immigration--History--19th century.
France--Emigration and immmigration--History--18th century.
French--Italy--Naples--History--18th century.
French--Italy--Naples--History--19th century.
Naples (Italy)--Emigration and immigration--History--18th century.
Naples (Italy)--Emigration and immigration--History--19th century.