Columbia subject headings:
Harvard subject headings:
China--History--Shang dynasty, 1766 B.C.-1122 B.C.
China--History--Zhou dynasty, 1122 B.C.-221 B.C.
China--Politics and government--To 221 B.C.
Princeton subject headings:
China--History--Shang dynasty, 1766-1122 B.C.
China--History--Zhou dynasty, 1122-221 B.C.
China--Politics and government--To 221 B.C.