Columbia subject headings:
Korea (North)--Foreign relations--Congresses.
Korea (North)--Politics and government--Congresses.
Korea (North)--Social conditions--Congresses.
Harvard subject headings:
Korea (North)--Foreign relations--Congresses.
Korea (North)--Politics and government--Congresses.
Korea (North)--Social conditions--Congresses.
Princeton subject headings:
Korea (North)--Foreign relations.
Korea (North)--Politics and government.
Korea (North)--Social conditions.