Columbia subject headings:
Congo (Democratic Republic)--History--1960-1997--Chronology.
Congo (Democratic Republic)--Politics and government--1960-1997.
Congo (Democratic Republic)--Politics and government--1997-
Constitutions--Congo (Democratic Republic)
Harvard subject headings:
Congo (Democratic Republic)--Politics and government--1960-1997--Handbooks, manuals, etc.
Princeton subject headings: