Columbia subject headings:
Cooperative societies--Japan--History--21st century.
Disaster relief--Japan--Tōhoku Region--History--21st century.
Harvard subject headings:
Cooperative societies--Japan.
Cooperative societies.
Disaster relief--Japan--Tōhoku Region.
Princeton subject headings:
Cooperative societies--Japan.
Cooperative societies.
Disaster relief--Japan--Tōhoku Region.