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Izgraždaneto na materialno-techničeskata baza na socializma i prechoda kŭm komunizma v NRB
Trendafilov, Tončo - 1964
Persistent link: https://www.econbiz.de/10002271264
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Progresul economic
Traistaru, Ion - 1975
Persistent link: https://www.econbiz.de/10002319728
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Omul, societatea, socialismul : Dinamica structurii sociale în România
Ionescu, Constantin - 1973
Persistent link: https://www.econbiz.de/10002764017
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Progresul tehnic şi dezvoltarea economică
Lemnij, Ihor - 1969
Persistent link: https://www.econbiz.de/10014417628