Columbia subject headings:
Autonomous soviet socialist republics--History.
Chuvashia (Russia)--Politics and government.
Mari El (Russia)--Politics and government.
Minorities--Government policy--Soviet Union--History.
Mordovii︠a︡ (Russia)--Politics and government.
Russian S.F.S.R. Narodnyĭ komissariat po delam nat︠s︡ionalʹnosteĭ--History.
Harvard subject headings:
Autonomous soviet socialist republics--History.
Chuvashia (Russia)--Politics and government.
Mari El (Russia)--Politics and government.
Minorities--Government policy--Soviet Union--History.
Mordovii︠a︡ (Russia)--Politics and government.
Russia (Federation). Narodnyĭ komissariat po delam nat͡sionalʹnosteĭ--History.
Princeton subject headings: