Columbia subject headings:
Japan--Boundaries--Russia (Federation)
Kuril Islands (Russia)--History.
Russia (Federation)--Boundaries--Japan.
Harvard subject headings:
Japan--Boundaries--Russia (Federation)
Kuril Islands (Russia)--History.
Russia (Federation)--Boundaries--Japan.
Princeton subject headings:
Japan--Boundaries--Russia (Federation).
Kuril Islands (Russia)--History.
Russia (Federation)--Boundaries--Japan.