Columbia subject headings:
Harvard subject headings:
Korea--History--Koryŏ period, 935-1392--Historiography.
Korea--History--Koryŏ period, 935-1392.
Koryŏsa.
Princeton subject headings:
Korea--History--Koryŏ period, 935-1392--Historiography.
Korea--History--Koryŏ period, 935-1392.
Koryŏsa.