Columbia subject headings:
Economic development--Africa, Sub-Saharan.
Technical assistance--Africa, Sub-Saharan.
Technology transfer--Economic aspects--Africa, Sub-Saharan.
Harvard subject headings:
Appropriate technology--Africa, Sub-Saharan.
Economic development--Africa, Sub-Saharan.
Technology transfer--Economic aspects--Africa, Sub-Saharan.
Princeton subject headings:
Appropriate technology--Africa, Sub-Saharan.
Economic development--Africa, Sub-Saharan.
Technology transfer--Economic aspects--Africa, Sub-Saharan.