Columbia subject headings:
Harvard subject headings:
Local government--Russia (Federation)--Mordovii͡a--Congresses--History--Sources.
Mordovii︠a︡ (Russia)--Congresses--History--Sources.
Mordovii︠a︡ (Russia)--History--Sources.
Soviets (Councils)--Russia (Federation)--Mordovii͡a--Congresses--History--Sources.
Princeton subject headings:
Local government--Russia (Federation)--Mordovii︠a︡--Congresses--History--Sources.
Mordovii︠a︡ (Russia)--Congresses--History--20th century--Sources.
Soviets (Councils)--Russia (Federation)--Mordovii︠a︡--Congresses--History--Sources.