Columbia subject headings:
Harvard subject headings:
China--History--221 B.C.-960 A.D.--Congresses.
China--History--Warring States, 403 B.C.-221 B.C.--Congresses.
Suma, Guang, 1019-1086. Zi zhi tong jian--Congresses.
Princeton subject headings:
China--History--221 B.C.-960 A.D.--Congresses.
China--History--Warring States, 403-221 B.C.--Congresses.
Suma, Guang, 1019-1086. Zi zhi tong jian--Congresses.