Não informado. (1939). Light metals bulletin. British Aluminium Company, Intelligence Department.
Cita Chicago Style (17a ed.)Não informado. Light Metals Bulletin. London: British Aluminium Company, Intelligence Department, 1939.
Cita MLA (8a ed.)Não informado. Light Metals Bulletin. British Aluminium Company, Intelligence Department, 1939.
Precaución: Estas citas no son 100% exactas.