Não informado. (1977). Steel times international. Fuel and Metallurgical Journals.
Chicagoスタイル(17版)引用形式Não informado. Steel Times International. Surrey, Inglaterra: Fuel and Metallurgical Journals, 1977.
MLA(8版)引用形式Não informado. Steel Times International. Fuel and Metallurgical Journals, 1977.
警告: この引用は必ずしも正確ではありません.