Columbia subject headings:
China--Biography.
China--History--1976-2002.
China--History--Cultural Revolution, 1966-1976.
China--Social life and customs.
Niu-Niu.
Harvard subject headings:
China--Biography.
China--Social conditions--1976-
Niu-Niu.
Princeton subject headings:
China--Biography.
China--Cultural revolution, 1966-1969.
China--History--1976-2002.
China--Social life and customs.
Niu-Niu.