Columbia subject headings:
China--Intellectual life--1976-
China--Social conditions--1976-2000.
Freedom of speech.
Harvard subject headings:
China--Intellectual life--1976-
China--Politics and government--1976-
China--Politics and government--1976-2002.
Intellectual freedom--China.
Princeton subject headings:
China--Intellectual life--1976-
China--Politics and government--1976-.