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Consideraţii tehnico-economice privind economisirea resurselor
Socolescu, Anca - In: Teorie şi practică economică (1982), pp. 10-14
Persistent link: https://www.econbiz.de/10001056615
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Mineralogia topografica a României
Rǎdulescu, Dan; Dimitrescu, Radu - 1966
Persistent link: https://www.econbiz.de/10000312299
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Resurse, cheltuieli materiale, venit naţional
Sîrbu, Constantin - 1980
Persistent link: https://www.econbiz.de/10002830022
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Zăcǎmintele metalifere ale subsolului rominesc
Brana, Viorel - 1958
Persistent link: https://www.econbiz.de/10002328591