Los puntos clave no están disponibles para este artículo en este momento.
The Warrant Chiefs: indirect rule in Southeastern Nigeria, 1891–1929 by A. E. Afigbo London, Longman, 1972. Pp. viii+ 336. £4.00. - The Evolution of the Nigerian State: the Southern phase, 1898–1914 by T. N. Tamuno London, Longman, 1972. Pp. xvi + 422. £4.00. - Volume 11 Issue 3
Samuel Okafor (Sat,) studied this question.