Columbia subject headings:
Harvard subject headings:
Energy conservation--Africa, Sub-Saharan.
Energy policy--Africa, Sub-Saharan.
Renewable energy sources--Africa, Sub-Saharan.
Solar energy--Africa, Sub-Saharan.
Sustainable development--Africa, Sub-Saharan
Water-power--Africa, Sub-Saharan.
Wind power--Africa, Sub-Saharan.
Princeton subject headings:
Energy conservation--Africa, Sub-Saharan.
Energy policy--Africa, Sub-Saharan.
Renewable energy sources--Africa, Sub-Saharan.
Solar energy--Africa, Sub-Saharan.
Sustainable development--Africa, Sub-Saharan.
Water-power--Africa, Sub-Saharan.
Wind power--Africa, Sub-Saharan.