Columbia subject headings:
Africa, Sub-Saharan--Economic conditions--1960---Congresses.
Africa, Sub-Saharan--Economic policy--Congresses.
Africa--Economic conditions--1960---Congresses.
Harvard subject headings:
Africa, Sub-Saharan--Economic conditions--1960-
Africa, Sub-Saharan--Economic conditions--1960---Congresses.
Africa, Sub-Saharan--Economic policy--1960-
Africa, Sub-Saharan--Economic policy--Congresses.
Africa--Economic conditions--1960-
Africa--Economic conditions--1960---Congresses.
Princeton subject headings:
Africa, Sub-Saharan--Economic conditions--1960---Congresses.
Africa, Sub-Saharan--Economic policy--Congresses.
Africa--Economic conditions--1960---Congresses.