Não informado. (1959). Stal in english. Iron and Stell Institute.
Chicagoスタイル(17版)引用形式Não informado. Stal in English. London: Iron and Stell Institute, 1959.
MLA(8版)引用形式Não informado. Stal in English. Iron and Stell Institute, 1959.
警告: この引用は必ずしも正確ではありません.