Columbia subject headings:
Federal government--Nigeria.
Nigeria--Administrative and political divisions.
Nigeria--Politics and government--1979-1983.
Shagari, Shehu Usman Aliyu, 1925-2018.
Harvard subject headings:
Nigeria--Economic conditions--1970-
Nigeria--Politics and government--1979-1983.
Nigeria--Politics and government--1984-1993.
Shagari, Shehu Usman Aliyu, 1925-2018
Princeton subject headings: