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1876, 1976 Achtzehnhundertsechsundsiebzig, neunzehnhundertsechsundsiebzig, hundert Jahre Duisburger Kupferhütte
Duisburger Kupferhütte - 1976
Persistent link: https://www.econbiz.de/10000164405
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Las perspectivas de la refinación del cobre en el Perú
Aste Daffós, Juan; Portugal Mendoza, Carlos - 1984 - 1. ed
Persistent link: https://www.econbiz.de/10000166850
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The world's great copper mines
Smith, Bertie Webster - 1967
Persistent link: https://www.econbiz.de/10000545282
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Proceedings of Metal Bulletin's First International Copper Conference, June 13 - 15, 1982, Copenhagen
Tarring, Trevor (ed.); Freeman, Lynda (ed.) - 1983
Persistent link: https://www.econbiz.de/10000661476
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Summarized data of copper production
Julihn, C. E. - 1928
Persistent link: https://www.econbiz.de/10000644832
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The world copper industry : its changing structure and future prospects
Takeuchi, Kenji; Strongman, John E.; Maeda, Shunichi - 1986 - 1. print.
Persistent link: https://www.econbiz.de/10000699825