Columbia subject headings:
Italian language--Dialects--Italy--Piedmont--Congresses.
Italian literature--Italy--Piedmont--History and criticism--Congresses.
Harvard subject headings:
Italian language--Dialects--Italy--Piedmont--Congresses.
Italian literature--Italy--Piedmont--History and criticism--Congresses.
Princeton subject headings:
Italian language--Dialects--Italy--Piemonte--Congresses.
Italian literature--Italy--Piemonte--History and criticism--Congresses.