Columbia subject headings:
Harvard subject headings:
Grammar, Comparative and general--Syntax--Congresses.
Grammar, Comparative and general--Syntax.
Grammar, Comparative and general--Topic and comment--Congresses.
Grammar, Comparative and general--Topic and comment.
Italian language--Dialects--Topic and comment--Congresses.
Italian language--Dialects--Topic and comment.
Italian language--Topic and comment--Congresses.
Italian language--Topic and comment.
Princeton subject headings:
Grammar, Comparative and general--Syntax.
Grammar, Comparative and general--Topic and comment.
Italian language--Dialects--Topic and comment.
Italian language--Topic and comment.