Columbia subject headings:
Africa, West--Emigration and immigration.
Migration, Internal--Africa, West.
Rural-urban migration--Africa, West.
Harvard subject headings:
Africa, West--Emigration and immigration.
Migration, Internal--Africa, West.
Rural-urban migration--Africa, West.
Princeton subject headings:
Africa, West--Emigration and immigration.
Migration, Internal--Africa, West.
Rural-urban migration--Africa, West.