Columbia subject headings:
Harvard subject headings:
China--Foreign relations--To 1912.
China--History--Xianfeng, 1850-1861
China--Politics and government--19th century.
Yixin, 1833-1898.
Princeton subject headings:
China--Foreign relations--To 1912.
China--History--Xianfeng, 1850-1861.
China--Politics and government--19th century.
Yixin, 1833-1898.