Não informado. (1939). Tin and its uses. International Tin Research Institute.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Tin and Its Uses. London: International Tin Research Institute, 1939.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Tin and Its Uses. International Tin Research Institute, 1939.
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