Columbia subject headings:
Harvard subject headings:
Mordovskai︠a︡ A.S.S.R. (Russia)--Antiquities.
Mordovskai︠a︡ A.S.S.R. (Russia)--History.
Princeton subject headings:
Mordovskai︠a︡ A.S.S.R. (R.S.F.S.R.)--Antiquities.
Mordovskai︠a︡ A.S.S.R. (R.S.F.S.R.)--History.
Russia (Federation)--Antiquities.