Columbia subject headings:
Harvard subject headings:
Cities and towns--Korea--History.
Households--Korea (North)--Kaesŏng-si--Registers.
Households--Korea (South)--Inchʻŏn--Registers.
Inch'ŏn (Korea)--Economic conditions.
Kaesŏng-si (Korea)--Economic conditions.
Princeton subject headings:
Cities and towns--Korea--History.
Households--Korea (North)--Kaesŏng-si--Registers.
Households--Korea (South)--Inch'ŏn--Registers.
Inch'ŏn (Korea)--Economic conditions.
Kaesŏng-si (Korea)--Economic conditions.