Columbia subject headings:
Harvard subject headings:
Nigeria--Economic conditions--1960-
Nigeria--Economic policy.
Nigeria--History--Civil War, 1967-1970.
Technological innovations--Nigeria.
Princeton subject headings:
Nigeria--Economic policy.
Nigeria--History--Civil War, 1967-1970--Economic aspects.
Nigeria--History--Civil War, 1967-1970--Technology.
Technological innovations--Nigeria.