Columbia subject headings:
Harvard subject headings:
Siberia (Russia)--Economic conditions--Sources--Congresses.
Siberia (Russia)--Economic policy--Sources--Congresses.
Siberia (Russia)--Politics and government--Sources--Congresses.
Sibirskiĭ kraĭ (R.S.F.S.R.). Sʺezd Sovetov (2nd : 1927 : Novosibirsk, Russia)
Princeton subject headings:
Siberia (Russia)--Economic conditions--Sources.
Siberia (Russia)--Economic policy--Sources.
Siberia (Russia)--Politics and government--Sources.