Columbia subject headings:
Harvard subject headings:
Congo (Democratic Republic)--Economic conditions--1960---Periodicals.
Congo (Democratic Republic)--Politics and government--1960-1997--Periodicals.
Zambia--Economic conditions--1964---Periodicals.
Zambia--Politics and government--1991---Periodicals.
Princeton subject headings:
Congo (Democratic Republic)--Economic conditions--Periodicals.
Congo (Democratic Republic)--Politics and government--Periodicals.
Zambia--Economic conditions--1964---Periodicals.
Zambia--Politics and government--1964---Periodicals.