Columbia subject headings:
China--Foreign relations--618-907.
China--Foreign relations--Korea.
China--Foreign relations.
Korea--Foreign relations--China.
Harvard subject headings:
China--Foreign relations
China--Foreign relations--618-907
China--Foreign relations--Korea
Korea--Foreign relations--China
Princeton subject headings:
China--Foreign relations--618-907.
China--Foreign relations--Korea.
Korea--Foreign relations--China.