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APA-referensUnited Nations. Economic Commission for Europe. (1991). Iron and steel scrap: Its significance and influence on further developments in the iron and steel industries (5. upd.). United Nations.
Chicago-stil citatUnited Nations. Economic Commission for Europe. Iron and Steel Scrap: Its Significance and Influence on Further Developments in the Iron and Steel Industries. 5. upd. New York [N.Y.]: United Nations, 1991.
MLA-referensUnited Nations. Economic Commission for Europe. Iron and Steel Scrap: Its Significance and Influence on Further Developments in the Iron and Steel Industries. 5. upd. United Nations, 1991.
Harvard-stil citatUnited Nations. Economic Commission for Europe. 1991. Iron and steel scrap: Its significance and influence on further developments in the iron and steel industries. 5. upd. New York [N.Y.]: United Nations.