Columbia subject headings:
Black people--Congo (Brazzaville)--Population.
Black people--Congo (Brazzaville)--Social life and customs.
Harvard subject headings:
Brazzaville (Congo)--Social conditions.
Rural-urban migration--Congo (Brazzaville)--Brazzaville.
Princeton subject headings:
Black people--Congo (Brazzaville)--Population.
Black people--Congo (Brazzaville)--Social life and customs.