Columbia subject headings:
Communism--China--History--20th century.
Peasants--China--History--20th century.
Working class--China--History--20th century.
Harvard subject headings:
Communism--China--History--20th century
Peasants--China--History--20th century.
Working class--China--History--20th century.
Princeton subject headings:
Communism--China--History--20th century.
Labor movement--China--History--20th century.
Peasants--China--History--20th century.