Columbia subject headings:
Harvard subject headings:
Korea--History--Chosŏn dynasty, 1392-1910.
P'yŏngan-namdo (Korea)--History, Local.
Pyʻŏngan-pukto (Korea)--History, Local.
Princeton subject headings:
Korea--History--Chosŏn dynasty, 1392-1910.
P'yŏngan-namdo (Korea)--History, Local.
Pyʻŏngan-pukto (Korea)--History, Local.