Columbia subject headings:
Africa, Sub-Saharan--Emigration and immigration.
Africa, Sub-Saharan--Population.
Migration, Internal--Africa, Sub-Saharan.
Harvard subject headings:
Migration, Internal--Africa, French-speaking West.
Population geography--Africa, French-speaking West.
Princeton subject headings:
Migration, Internal--Africa, French-speaking West.
Population geography--Africa, French-speaking West.