Columbia subject headings:
Harvard subject headings:
China--Foreign relations--1912-1949--Sources.
China--History--1912-1937.
China--History--Warlord period, 1916-1928.
China--Politics and government--Warlord period, 1916-1928.
Paris Peace Conference (1919-1920)--Sources.
Princeton subject headings:
China--Foreign relations--Warlord period, 1916-1928--Sources.
China--History--Warlord period, 1916-1928--Sources.
China--Politics and government--Warlord period, 1916-1928--Sources.
Paris Peace Conference (1919-1920)--Sources.