Columbia subject headings:
Tofa language (Irkutskai͡a oblastʹ, Russia)
Turkic languages.
Harvard subject headings:
Tofa language (Irkutskai͡a oblastʹ, Russia)
Turkic languages.
Princeton subject headings:
Tofa language (Irkutskai︠a︡ oblastʹ, Russia)
Turkic languages.