Columbia subject headings:
Harvard subject headings:
China--Foreign relations--Korea.
China--History--Ming dynasty, 1368-1644.
China--History--Qing dynasty, 1644-1912.
Korea--Foreign relations--China.
Shipwrecks--China--History.
Princeton subject headings:
China--Foreign relations--Korea.
China--History--Ming dynasty, 1368-1644.
China--History--Qing dynasty, 1644-1912.
Korea--Foreign relations--China.
Shipwrecks--China--History.