Columbia subject headings:
Cooperation--Societies, etc.--History.
Cooperative societies--Law and legislation--Japan--Gero-shi--History.
Geothermal resources--Law and legislation--Japan--History.
Hot springs--Economic aspects--Japan--Gero-shi--History.
Harvard subject headings:
Geothermal resources--Law and legislation--Japan.
Hot springs--Government policy--Japan.
Princeton subject headings:
Geothermal resources--Law and legislation--Japan--History.
Hot springs--Economic aspects--Japan--Gero-shi--History.