Columbia subject headings:
Historiography--China--Early works to 1800.
Korea--History--To 935--Historiography.
Harvard subject headings:
Historiography--China--Early works to 1800.
Korea--History--To 935--Historiography
Princeton subject headings:
China--Foreign relations--Korea.
Er shi si shi.
Korea--Foreign relations--China.
Korea--History--To 935.
Korea--Social life and customs--To 935.