Não informado. (2021). Annual Bulletin of Steel Statistics for Europe, America and Asia. United Nations.
Cita Chicago Style (17a ed.)Não informado. Annual Bulletin of Steel Statistics for Europe, America and Asia. New York: United Nations, 2021.
Cita MLA (8a ed.)Não informado. Annual Bulletin of Steel Statistics for Europe, America and Asia. United Nations, 2021.
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