Columbia subject headings:
Associations, institutions, etc.--China--Yunnan Sheng--History--20th century.
Disaster relief--China--Yunnan Sheng--History--20th century.
Harvard subject headings:
Disaster relief--China--Yunnan Sheng--History--20th century.
Non-governmental organizations--China--Yunnan Sheng--History--20th century.
Yunnan Sheng (China)--Social conditions--20th century.
Princeton subject headings:
Associations, institutions, etc.--China--Yunnan Sheng--History--20th century.
Chinese|zChina--Yunnan Sheng--Charities.
Disaster relief--China--Yunnan Sheng--History--20th century.