Columbia subject headings:
Harvard subject headings:
China--Foreign relations--1644-1912
China--Foreign relations--1912-1949
China--Foreign relations--Treaties.
Christianity and politics--China.
Missionaries--China.
Unequal treaties--History.
Princeton subject headings:
China--Foreign relations--1644-1912.
China--Foreign relations--1912-1949.
China--Foreign relations--Treaties.
Christianity and politics--China.
Missionaries--China.
Treaties.
Unequal treaties--History.