Columbia subject headings:
Harvard subject headings:
China--Relations--Korea.
Korea--History--Chosŏn dynasty, 1392-1910.
Korea--Relations--China.
Koreans--China--Manchuria--History
Princeton subject headings:
China--Relations--Korea.
Korea--History--Chosŏn dynasty, 1392-1910.
Korea--Relations--China.
Koreans--China--Machuria--History.