Columbia subject headings:
Chuvashia (Russia)--History.
Kommunisticheskai͡a partii͡a Chuvashii--History.
Harvard subject headings:
Chuvashia (Russia)--History.
Kommunisticheskai︠a︡ partii︠a︡ Chuvashii--History.
Princeton subject headings:
Chuvashskai︠a︡ A.S.S.R. (R.S.F.S.R.)--History.
Kommunisticheskai︠a︡ partii︠a︡ Sovetskogo Soi︠u︡za--Party work--History.