Columbia subject headings:
Hokkaido (Japan)--Economic conditions--Congresses.
Hokkaido (Japan)--Population policy--Congresses.
Hokkaido (Japan)--Social conditions--Congresses.
Migration, Internal--Japan--Hokkaido--Congresses.
Harvard subject headings:
Hokkaido (Japan)--Economic conditions.
Hokkaido (Japan)--Population density--Congresses.
Hokkaido (Japan)--Population policy--Congresses.
Hokkaido (Japan)--Population policy.
Hokkaido (Japan)--Social conditions.
Migration, Internal--Japan--Hokkaido--Congresses.
Princeton subject headings:
Hokkaido (Japan)--Population density--Congresses.
Hokkaido (Japan)--Population policy--Congresses.
Migration, Internal--Japan--Hokkaido--Congresses.