Columbia subject headings:
Harvard subject headings:
Nigeria--Economic conditions--1960-
Nigeria--Ethnic relations.
Nigeria--History--1960-
Nigeria--History--Civil War, 1967-1970.
Nigeria--Politics and government--1960-
Nigeria--Strategic aspects.
Princeton subject headings:
Nigeria--Administrative and political divisions.
Nigeria--Ethnic relations.
Nigeria--History--1960-
Nigeria--Strategic aspects.