Columbia subject headings:
Natural resources--Political aspects--Western Sahara--History.
Natural resources--Western Sahara--History.
Western Sahara--Economic policy.
Western Sahara--Politics and government.
Harvard subject headings:
Natural resources--Political aspects--Western Sahara--History.
Natural resources--Western Sahara--History.
Western Sahara--Economic policy.
Western Sahara--Politics and government.
Princeton subject headings:
Natural resources--Political aspects--Western Sahara--History.
Natural resources--Western Sahara--History.
Western Sahara--Economic policy.
Western Sahara--Politics and government.