Including:
a) Constitution of the United Nigeria Group, 27 March 1969
b) Ts. 'The Nigerian civil war', Sir Miles Clifford, United Nigeria Group, circa 1969
c) Ts. 'Impression of my visit to Nigeria and Liberia', Rt. Hon. Dr Nnamdi Azikiwe, former President of Nigeria, 28 August 1969
d) Ts. 'Origins of the Nigerian civil war', Rt. Hon. Dr Nnamdi Azikiwe, former President of Nigeria, circa 1969