Columbia subject headings:
Italian language--Dialects--Italy--Rome--Congresses.
Sociolinguistics--Italy--Rome--Congresses.
Harvard subject headings:
Italian language--Dialects--Italy--Rome--Congresses.
Italian language--Italy--Rome--Social aspects.
Italian language--Italy--Rome.
Sociolinguistics--Italy--Rome--Congresses.
Princeton subject headings:
Italian language--Dialects--Italy--Rome--Congresses.
Sociolinguistics--Italy--Rome--Congresses.