Columbia subject headings:
Harvard subject headings:
Korea--Military relations with Juchen (Tribe)
O, Chŏng-chʻong, 1055-1116.
Yun, Kwan, -1111
Princeton subject headings:
Korea--Realations (Military) with Juchen (Tribe)
O, Chŏng-ch'ong, 1055-1116.
Yun, Kwan, -1111.