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Istoričeskoto delo na Aprilskija Plenum na CK na BKP : Narodna Biblioteka "Kiril i Metodij" ; bibliografija 1956-1976
Draganov, Gančo Gančev (contributor);  … - 1976
Persistent link: https://www.econbiz.de/10002317085
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Generalized system of preferences : measures by the socialist countries of Eastern Europe
1971
Persistent link: https://www.econbiz.de/10003141505
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Industrial co-operation of Bulgaria with countries having different economic and social systems
Karastoyanov, Dimitar (contributor) - 1975
Persistent link: https://www.econbiz.de/10003152491
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Naučno upravlenie na obštestvoto : bibliografski ukazatel
Lulceva, Angelina (contributor) - 1971
Persistent link: https://www.econbiz.de/10003188834
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Komunističeskoto vǔzpitanie, osnovna zadača na bibliotekite : Nacionalno Sǔveštanie v Plovdiv, 20.-22.11.1969 g.
Kovačev, Velčo (contributor) - 1970
Persistent link: https://www.econbiz.de/10003171383
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Bǔlgariaj v čuždata literatura 1964 : bibliografski ukazatel
Trajkov, Veselin (contributor); Dančeva, Jota (contributor) - 1966
Persistent link: https://www.econbiz.de/10003097653
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Bǔlgarija v čuždata literatura 1965 : bibliografski ukazatel
Lazarov, Michail (contributor); Dančeva, Jota (contributor) - 1967
Persistent link: https://www.econbiz.de/10003097672
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Bǔlgarija v čuzďata literatura, 1968 : bibliografski ukazatel
Lazarov, Michail (contributor); Dančeva, Jota (contributor) - 1970
Persistent link: https://www.econbiz.de/10003097684
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Bǔlgarija v čuždata literatura : Bulgarika 1972 ; godišen ukazatel
1974
Persistent link: https://www.econbiz.de/10003097691