Columbia subject headings:
Harvard subject headings:
Africa, West--Relations--Algeria.
Algeria--Civilization.
Algeria--Economic conditions--1962-
Algeria--History.
Algeria--Relations--Africa, West.
Petroleum industry and trade--Algeria
Roads--Economic aspects--Algeria.
Roads--Political aspects--Algeria.
Sahara.
Sahel.
Princeton subject headings:
Algeria--Economic conditions.
Algeria--History--.
Petroleum industry and trade--Sahara.
Sahara--Economic conditions.