Great Britain. Office of Commonwealth Relations & Great Britain. Parliament. (1960). Federation of Nigeria: International rights and obligations : exchange of letters between the government of the United Kingdom and the government of the Federation of Nigeria. H.M.S.O..

Great Britain. Office of Commonwealth Relations and Great Britain. Parliament. Federation of Nigeria: International Rights and Obligations : Exchange of Letters Between the Government of the United Kingdom and the Government of the Federation of Nigeria. London: H.M.S.O., 1960.

Great Britain. Office of Commonwealth Relations and Great Britain. Parliament. Federation of Nigeria: International Rights and Obligations : Exchange of Letters Between the Government of the United Kingdom and the Government of the Federation of Nigeria. H.M.S.O., 1960.