Columbia subject headings:
Grammar, Comparative and general--Congresses.
Grammar, Comparative and general--History--Congresses.
Mediterranean Region--Languages--Congresses.
Mediterranean Region--Languages--History--Congresses.
Harvard subject headings:
Historical linguistics--Mediterranean Region--Congresses.
Languages in contact--Mediterranean Region--Congresses.
Mediterranean Region--Languages--Congresses.
Princeton subject headings:
Grammar, Comparative and general--Congresses.
Grammar, Comparative and general--History--Congresses.
Mediterranean Region--Languages--Congresses.
Mediterranean Region--Languages--History--Congresses.