United Nations. Department of Economic and Social Affairs. (1973). Implementation of the international development strategy. United Nations Publication.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিUnited Nations. Department of Economic and Social Affairs. Implementation of the International Development Strategy. New York: United Nations Publication, 1973.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিUnited Nations. Department of Economic and Social Affairs. Implementation of the International Development Strategy. United Nations Publication, 1973.
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