Columbia subject headings:
Congo (Democratic Republic)--Economic conditions--1960---Congresses.
Congo (Democratic Republic)--Foreign relations--Congresses.
Congo (Democratic Republic)--Politics and government--1960-1997--Congresses.
Harvard subject headings:
Congo (Democratic Republic)--Economic conditions--1960---Congresses.
Congo (Democratic Republic)--Foreign relations--Congresses.
Congo (Democratic Republic)--Politics and government--1960-1997--Congresses.
Princeton subject headings:
Congo (Democratic Republic)--Economic conditions--1960---Congresses.
Congo (Democratic Republic)--Foreign relations--Congresses.
Congo (Democratic Republic)--Politics and government--1960-1997--Congresses.