Columbia subject headings:
Agricultural development projects--Africa, Sub-Saharan.
Agricultural productivity--Africa, Sub-Saharan.
Food relief, American--Africa, Sub-Saharan.
Food supply--Africa, Sub-Saharan.
Harvard subject headings:
Princeton subject headings:
Agricultural development projects--Africa, Sub-Saharan.
Agricultural productivity--Africa, Sub-Saharan.
Food relief, American--Africa, Sub-Saharan.
Food supply--Africa, Sub-Saharan.