Columbia subject headings:
Harvard subject headings:
Italian language--Dialects--Italy--Emilia-Romagna.
Italian language--Dialects--Italy--Tuscany.
Languages in contact--Italy--Emilia-Romagna.
Languages in contact--Italy--Liguria.
Languages in contact--Italy--Lunigiana.
Languages in contact--Italy--Tuscany.
Languages in contact--Italy--Umbria.
Princeton subject headings:
Italian language--Dialects--Italy--Emilia-Romagna.
Italian language--Dialects--Italy--Tuscany.
Languages in contact--Italy--Emilia-Romagna.
Languages in contact--Italy--Liguria.
Languages in contact--Italy--Lunigiana.
Languages in contact--Italy--Tuscany.
Languages in contact--Italy--Umbria.