Columbia subject headings:
Africa--Economic conditions--Congresses.
Africa--Population--Congresses.
Africa--Social conditions--Congresses.
Birth control--Africa--Congresses.
Fertility, Human--Africa--Congresses.
Harvard subject headings:
Africa--Economic conditions--Congresses.
Africa--Population--Congresses.
Africa--Social conditions--Congresses.
Birth control--Africa--Congresses.
Fertility, Human--Africa--Congresses.
Princeton subject headings:
Africa--Economic conditions--Congresses.
Africa--Population--Congresses.
Africa--Social conditions--Congresses.
Birth control--Africa--Congresses.
Fertility, Human--Africa--Congresses.