Columbia subject headings:
Nigeria--Economic policy--Congresses.
Nigeria--Foreign economic relations--Congresses.
Nigeria--Politics and government--1984-1993--Congresses.
Nigeria--Social policy--Congresses.
Political planning--Nigeria--Congresses.
Harvard subject headings:
Nigeria--Economic policy--Congresses.
Nigeria--Foreign economic relations--Congresses.
Nigeria--Politics and government--1984-1993--Congresses.
Princeton subject headings: