United Nations Industrial Development Organization. (1977). Information sources on the iron and steel industry. United Nations.
Čikaški stil citiranja (17. izdanje)United Nations Industrial Development Organization. Information Sources on the Iron and Steel Industry. New York: United Nations, 1977.
MLA način citiranja (9. izdanje)United Nations Industrial Development Organization. Information Sources on the Iron and Steel Industry. United Nations, 1977.
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