Não informado. (2004). Industrial Research and Development News. United Nations, Industrial Development Organization.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Industrial Research and Development News. New York: United Nations, Industrial Development Organization, 2004.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Industrial Research and Development News. United Nations, Industrial Development Organization, 2004.
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