Columbia subject headings:
Dagestan (Russia)--History--Sources.
Turkic languages--Russia (Federation)--Dagestan--History.
Turkish letters--Russia (Federation)--Dagestan--History and criticism.
Turks--Russia (Federation)--Dagestan--History--Sources.
Harvard subject headings:
Chechni︠a︡ (Russia)--History--18th century--Sources.
Dagestan (Russia)--History--18th century--Sources.
Turkic letters--Russia (Federation)--Caucasus, Northern--History--18th century.
Princeton subject headings: