Não informado. (2020). Iron Age: The management magazine for metal producers. Fairchild Publications.
Lua i Stíl Chicago (17ú heag.)Não informado. Iron Age: The Management Magazine for Metal Producers. New York: Fairchild Publications, 2020.
Lua MLA (8ú heag.)Não informado. Iron Age: The Management Magazine for Metal Producers. Fairchild Publications, 2020.
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