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..
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিGreat Britain. Office of Commonwealth Relations এবং 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.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিGreat Britain. Office of Commonwealth Relations এবং 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.