Columbia subject headings:
Cameroon--Economic conditions--Periodicals.
Central African Republic--Economic conditions--Periodicals.
Chad--Economic conditions--Periodicals.
Harvard subject headings:
Cameroon--Economic conditions--1960---Periodicals.
Cameroon--Economic conditions--Periodicals.
Central African Republic--Economic conditions--Periodicals.
Chad--Economic conditions--Periodicals.
Princeton subject headings:
Cameroon--Economic conditions--Periodicals.
Central African Republic--Economic conditions--Periodicals.
Chad--Economic conditions--Periodicals.