Columbia subject headings:
Investments--China--History--19th century.
Investments--China--History--20th century.
Ni family.
Ni, Sichong, 1868-1924--Family.
Harvard subject headings:
Investments--China--History--19th century.
Investments--China--History--20th century.
Ni family
Ni, Sichong, 1868-1924--Family.
Princeton subject headings: