Columbia subject headings:
Harvard subject headings:
Korea--Biography--Koryŏ period, 935-1392.
Korea--Biography--To 935.
Korea--History--Koryŏ period, 935-1392.
Korea--History--To 935.
Princeton subject headings:
Korea--Biography--Koryŏ period, 935-1392.
Korea--Biography--To 935.
Korea--History--Koryŏ period, 935-1392.
Korea--History--To 935.