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