Columbia subject headings:
Harvard subject headings:
Hokkaido (Japan)--Civilization.
Manchuria (China)--Civilization.
Okhotsk culture.
Siberia, Northeastern (Russia)--Civilization.
Princeton subject headings:
Hokkaido (Japan)--Civilization.
Manchuria (China)--Civilization.
Okhotsk culture.
Siberia, Northeastern (Russia)--Civilization.