Columbia subject headings:
Africa, Sub-Saharan--Economic conditions--1960-
Economic assistance--Africa, Sub-Saharan.
Economic assistance.
Economic development--International cooperation.
Sustainable development.
Harvard subject headings:
Africa, Sub-Saharan--Economic conditions--1960-
Economic assistance
Economic assistance--Africa, Sub-Saharan
Sustainable development
Sustainable development--Africa, Sub-Saharan
Princeton subject headings:
Africa, Sub-Saharan--Economic conditions--1960-
Economic assistance--Africa, Sub-Saharan.
Economic assistance.
Sustainable development--Africa, Sub-Saharan.
Sustainable development.