Columbia subject headings:
Chuvash (Turkic people)--History.
Chuvashia (Russia)--Administrative and political divisions.
Chuvashia (Russia)--History.
Chuvashia (Russia)--Politics and government.
Harvard subject headings:
Chuvash (Turkic people)
Chuvashia (Russia)--Biography.
Chuvashia (Russia)--History
Princeton subject headings: