Columbia subject headings:
China--Officials and employees--Selection and appointment--History--Sources.
China--Politics and government--581-907--Sources.
Civil service--China--Examinations--History--Sources.
Harvard subject headings:
China--Officials and employees--Selection and appointment--History--Sources.
China--Politics and government--581-907--Sources.
Civil service--China--Examinations--History--Sources.
Princeton subject headings:
China--History--Tʻang dynasty, 618-907.
Civil service--Employment--China.
Public administration--History--China.