Columbia subject headings:
Harvard subject headings:
Africa, Sub-Saharan--Population.
Age distribution (Demography)--Africa, Sub-Saharan.
Demographic transition--Africa, Sub-Saharan.
Demographic transition--Economic aspects--Africa, Sub-Saharan.
Economic development--Africa, Sub-Saharan.
Princeton subject headings:
Africa, Sub-Saharan--Population.
Age distribution (Demography)--Africa, Sub-Saharan.
Demographic transition--Africa, Sub-Saharan.
Demographic transition--Economic aspects--Africa, Sub-Saharan.
Economic development--Africa, Sub-Saharan.