Columbia subject headings:
Harvard subject headings:
Chŏlla-bukto (Korea)--History, Local.
Namwŏn-gun (Korea)--History.
Okch'ŏn-gun (Korea)
Princeton subject headings:
Chŏlla-bukto (Korea)--History, Local.
Korea--History--Chosŏn dynasty, 1392-1910.
Namwŏn-gun (Korea)--History.
Okch'ŏn-gun (Korea)