Columbia subject headings:
Turkic languages--Grammar--Congresses.
Turkish language--Grammar--Congresses.
Harvard subject headings:
Languages in contact--Congresses
Sociolinguistics--Congresses
Turkic languages--Grammar--Congresses.
Turkic languages--Influence on foreign languages--Congresses.
Turkish language--Grammar--Congresses.
Princeton subject headings:
Turkic languages--Grammar--Congresses.
Turkish language--Grammar--Congresses.