Columbia subject headings:
Africa--Economic conditions--Periodicals.
Africa--Rural conditions--Periodicals.
Africa--Social conditions--Periodicals.
Cities and towns--Africa--Periodicals.
Urbanization--Africa--Periodicals.
Harvard subject headings:
Africa--Economic conditions--Periodicals.
Africa--Rural conditions--Periodicals.
Africa--Social conditions--Periodicals.
Agriculture--Economic aspects--Africa--Periodicals.
Urbanization--Africa--Periodicals.
Princeton subject headings:
Africa--Economic conditions--Periodicals.
Africa--Rural conditions--Periodicals.
Africa--Social conditions--1960---Periodicals.
Periodicals.
Urbanization--Africa--Periodicals.