Columbia subject headings:
Siberia (Russia)--Civilization--Congresses.
Siberia (Russia)--Intellectual life--Congresses.
Siberia (Russia)--Social conditions--Congresses.
Harvard subject headings:
Princeton subject headings:
Siberia (Russia)--Civilization--Congresses.
Siberia (Russia)--Intellectual life--Congresses.
Siberia (Russia)--Social conditions--Congresses.