Great Britain & Great Britain. Foreign and Commonwealth Office. (1981). Agreement between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the democratic Republic of the Sudan on certain commercial debts. Khartoum, 25 August 1980. H.M.S.O..
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিGreat Britain এবং Great Britain. Foreign and Commonwealth Office. Agreement Between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the Democratic Republic of the Sudan on Certain Commercial Debts. Khartoum, 25 August 1980. London: H.M.S.O., 1981.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিGreat Britain এবং Great Britain. Foreign and Commonwealth Office. Agreement Between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the Democratic Republic of the Sudan on Certain Commercial Debts. Khartoum, 25 August 1980. H.M.S.O., 1981.