Columbia subject headings:
Commercial associations--China--Wujin Qu (Changzhou, Jiangsu Sheng)--History--Sources.
Harvard subject headings:
China--History--Republic, 1912-1949--Sources.
Trade associations--China--Wujin Qu (Changzhou, Jiangsu Sheng)--History--Sources.
Wujin Qu (Changzhou, Jiangsu Sheng, China)--Commerce--History--Sources.
Wujin shang hui--History--Sources.
Princeton subject headings: