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Pjatijazyčnyj slovarʹ mineralogičeskich nazvanij
Nachimžan, Oskar Ėmzič - 1962
Persistent link: https://www.econbiz.de/10000537583
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Riqueza minera y yacimientos minerales de México : [Congreso Geologico Internacional, 20 sésion, México, 1956]
González Reyna, Jenaro - 1956 - 3. ed
Persistent link: https://www.econbiz.de/10000566179
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Exploración de placeres auriferos
Bravo, Carlos G. - 1934
Persistent link: https://www.econbiz.de/10002329529
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Commodity price bulletin
UNCTAD - Geneva - 2002,Febr. - 2002,Juni; 22.2002,2(Juli) - 23.2003
Persistent link: https://www.econbiz.de/10001719306
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América Latina : las exportaciones de productos básicos durante los años noventa
Kouzmine, Valentin - 2001
Persistent link: https://www.econbiz.de/10001647100
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Monthly commodity price bulletin / Supplement
UNCTAD - Geneva - 1960/80(1981); 1960/82(1983); 1960/84(1985) -
Persistent link: https://www.econbiz.de/10001617510
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Recursos minerales de Colombia
Wokittel, Roberto - 1960
Persistent link: https://www.econbiz.de/10001903796
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Los yacimientos minerales y de hidrocarburos de Bolivia
Ahlfeld, Friedrich; Schneider-Scherbina, Alejandro - 1964
Persistent link: https://www.econbiz.de/10001518306