Columbia subject headings:
Harvard subject headings:
China--Officials and employees.
China--Politics and government--Han dynasty, 201 B.C.-220 A.D.
China--Politics and government--Tang dynasty, 618-907.
Princeton subject headings:
China--Officials and employees.
China--Politics and government--Han dynasty, 201 B.C.-220 A.D.
China--Politics and government--Tang dynasty, 618-907.