Não informado. (2002). AISE Steel Technology. Association of Iron and Steel Engineers.
Lua i Stíl Chicago (17ú heag.)Não informado. AISE Steel Technology. Pittsburgh, Pa: Association of Iron and Steel Engineers, 2002.
Lua MLA (8ú heag.)Não informado. AISE Steel Technology. Association of Iron and Steel Engineers, 2002.
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