Columbia subject headings:
China--History--221 B.C.-960 A.D.--Periodicals.
China--Social conditions--221 B.C.-960 A.D.--Periodicals.
Harvard subject headings:
China--History--221 B.C.-960 A.D.--Periodicals.
China--Social conditions--221 B.C.-960 A.D.--Periodicals.
Princeton subject headings:
China--History--221 B.C.-960 A.D.--Periodicals.
Periodicals.