Columbia subject headings:
Harvard subject headings:
Old Turkic language--Congresses.
Turkic languages--History--Congresses.
Turkish language--History--Congresses.
Uighur language--Congresses.
Princeton subject headings:
Old Turkic language--Congresses.
Turkic languages--History--Congresses.
Turkish language--History--Congresses.
Uighur language--Congresses.