Columbia subject headings:
Africa, North--Economic conditions.
Africa, North--Economic integration.
Africa, North--Emigration and immigration.
Africa, North--Politics and government.
Africa, North--Social conditions.
Harvard subject headings:
Africa, North--Emigration and immigration.
Africa, North--Foreign economic relations.
Economic development--Africa, North.
Globalization--Africa, North.
Informal sector (Economics)--Africa, North.
Princeton subject headings: