Columbia subject headings:
Harvard subject headings:
China--Economic conditions--20th century.
China--Politics and government--20th century
Communism--China--History--20th century
Communism--Europe, Eastern--History--20th century
Europe, Eastern--Economic conditions--20th century.
Europe, Eastern--Politics and government--20th century.
Princeton subject headings:
China--Economic conditions--20th century.
China--Politics and government--20th century.
Communism--China--History--20th century.
Communism--Europe, Eastern--History--20th century.
Europe, Eastern--Economic conditions--20th century.
Europe, Eastern--Politics and government--20th century.