Columbia subject headings:
Harvard subject headings:
Bendel State (Nigeria)--Politics and government--Congresses.
Civil service--Nigeria--Congresses.
Nigeria--Politics and government--1960---Congresses.
Nigeria--Politics and government--1960-1975--Congresses.
Princeton subject headings:
Bendel State (Nigeria)--Politics and government--Congresses.
Civil service--Nigeria--Congresses.
Nigeria--Politics and government--1960---Congresses.