Columbia subject headings:
Harvard subject headings:
Africa, Sub-Saharan--Emigration and immigration--Economic aspects.
Africa, Sub-Saharan--Rural conditions.
Economic development--Africa, Sub-Saharan.
Migration, Internal--Economic aspects--Africa, Sub-Saharan.
Rural development--Africa, Sub-Saharan
Princeton subject headings:
Africa, Sub-Saharan--Emigration and immigration--Economic aspects.
Africa, Sub-Saharan--Rural conditions.
Economic development--Africa, Sub-Saharan.
Migration, Internal--Economic aspects--Africa, Sub-Saharan.
Rural development--Africa, Sub-Saharan.