Não informado. (1939). Tin and its uses. International Tin Research Institute.
Chicago (17e ed.) BronvermeldingNão informado. Tin and Its Uses. London: International Tin Research Institute, 1939.
MLA (8e ed.) BronvermeldingNão informado. Tin and Its Uses. International Tin Research Institute, 1939.
Let op: Deze citaties zijn niet altijd 100% accuraat.