Não informado. (2021). Annual Report of the International Tin Research Institute. International Tin Research Institute.
Chicago-referens (17:e uppl.)Não informado. Annual Report of the International Tin Research Institute. London: International Tin Research Institute, 2021.
MLA-referens (8:e uppl.)Não informado. Annual Report of the International Tin Research Institute. International Tin Research Institute, 2021.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.