Columbia subject headings:
Harvard subject headings:
Sakhalin (Sakhalinskai͡a oblastʹ, Russia)--Annexation to the Soviet Union.
Sakhalin (Sakhalinskai͡a oblastʹ, Russia)--Ethnic relations.
Sakhalin (Sakhalinskai︠a︡ oblastʹ, Russia)--History.
Princeton subject headings:
Sakhalin (Sakhalinskai︠a︡ oblastʹ, Russia)--History.