Não informado. (1939). Light metals bulletin. British Aluminium Company, Intelligence Department.
Chicagoスタイル(17版)引用形式Não informado. Light Metals Bulletin. London: British Aluminium Company, Intelligence Department, 1939.
MLA(8版)引用形式Não informado. Light Metals Bulletin. British Aluminium Company, Intelligence Department, 1939.
警告: この引用は必ずしも正確ではありません.