Columbia subject headings:
China--History--20th century.
China--History--Tiananmen Square Incident, 1989.
Communism--China--History.
Harvard subject headings:
China--History--20th century
China--History--Tiananmen Square Incident, 1989.
Communism--China--History
Princeton subject headings:
China--History--Tiananmen Square Incident, 1989.
China--Politics and government--20th century.