Não informado. (1939). Tin and its uses. International Tin Research Institute.
Chicago-referens (17:e uppl.)Não informado. Tin and Its Uses. London: International Tin Research Institute, 1939.
MLA-referens (8:e uppl.)Não informado. Tin and Its Uses. International Tin Research Institute, 1939.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.