Não informado. (1939). Light metals bulletin. British Aluminium Company, Intelligence Department.
Style de citation Chicago (17e éd.)Não informado. Light Metals Bulletin. London: British Aluminium Company, Intelligence Department, 1939.
Style de citation MLA (8e éd.)Não informado. Light Metals Bulletin. British Aluminium Company, Intelligence Department, 1939.
Attention : ces citations peuvent ne pas être correctes à 100%.