Columbia subject headings:
Harvard subject headings:
China--Politics and government--1644-1912.
China--Politics and government--1912-1949
China--Social conditions--1644-1912.
China--Social conditions--1912-1949.
Princeton subject headings:
China--Politics and government--1644-1912.
China--Politics and government--1912-1949.
China--Social conditions--1644-1912.
China--Social conditions--1912-1949.