Columbia subject headings:
Harvard subject headings:
Ibaraki-ken (Japan)--Biography.
Seki, Kumatarō, 1871-1896--Journeys--Russia--Kuril Islands.
Princeton subject headings:
Ibaraki-ken (Japan)--Biography.
Seki, Kumatarō, 1871-1896--Journeys--Russia--Kuril Islands.
Seki, Kumatarō, 1871-1896.