Columbia subject headings:
Regional planning--Russia (Federation)--Sakhalinskai︠a︡ oblastʹ.
Sakhalinskai︠a︡ oblastʹ (Russia)--Economic conditions.
Harvard subject headings:
Regional planning--Russia (Federation)--Sakhalinskai︠a︡ oblastʹ.
Sakhalin (Sakhalinskai͡a oblastʹ, Russia)--Economic conditions.
Sakhalinskai︠a︡ oblastʹ (Russia)--Economic conditions.
Princeton subject headings: