Hänvisningar gällande denna post
APA-referensUnited Nations. Economic Commission for Europe. (1982). Statistics of world trade in steel 1981. United Nations.
Chicago-stil citatUnited Nations. Economic Commission for Europe. Statistics of World Trade in Steel 1981. New York: United Nations, 1982.
MLA-referensUnited Nations. Economic Commission for Europe. Statistics of World Trade in Steel 1981. United Nations, 1982.
Harvard-stil citatUnited Nations. Economic Commission for Europe. 1982. Statistics of world trade in steel 1981. New York: United Nations.
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