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The dispute over the Obiship of Onitsha, 1961-63 : report of the inquiry into the dispute over the Obiship of Onitsha
Harding, R. W., (1963)
The economics of political instability : the Nigerian-Biafrian war
Nafziger, Estel Wayne, (1983)
Report of the Special Coordinator for Nigerian Relief : Hearing, Ninety-first Congress, first session. April 24, 1969
(1969)