Columbia subject headings:
Kazanʹ (Russia)--History--Congresses.
Harvard subject headings:
Kazanʹ (Russia)--History--Congresses.
Princeton subject headings:
Kazanʹ (Russia)--History--Congresses.
Tatars--Russia--History--Congresses.
Tatarstan (Russia)--History--Congresses.
Turkic peoples--Russia--History--Congresses.