Columbia subject headings:
Economic zoning--Russia (Federation)--Irkutskai︠a︡ oblastʹ.
Industrial location--Russia (Federation)--Irkutskai︠a︡ oblastʹ.
Harvard subject headings:
Economic zoning--Russia (Federation)--Irkutskai︠a︡ oblastʹ.
Industrial location--Russia (Federation)--Irkutskai︠a︡ oblastʹ.
Princeton subject headings: