Columbia subject headings:
Nigeria--Politics and government--1960-1975.
Harvard subject headings:
Bello, Ahmadu, Sir, 1910-1966.
Muffett, D.J.M.
Nigeria--History--1960-
Nigeria--History--Coup d'état, 1966 (January 15)
Nigeria--History--Coup d'état, 1966 (July 29)
Princeton subject headings:
Nigeria--Politics and government--1960-1975.