Columbia subject headings:
Labor unions and communism--China--History.
Working class--China--History.
Zhongguo gong chan dang--History.
Harvard subject headings:
Labor unions and communism--China--History.
Labor--China--History.
Working class--China--History.
Zhongguo gong chan dang--History.
Princeton subject headings:
China--Politics and government--1912-1928.
Labor movement--China.
Zhongguo gong chan dang--Party work.