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Pătnotransportni proizšestvija v Republika Bălgarija : [1994]
1995
Persistent link: https://www.econbiz.de/10000927825
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Nacionalni smetki za Bălgarija : iztočnici, metodi i ocenki
1996
Persistent link: https://www.econbiz.de/10000930969
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Materialno-techničeska baza na naukata
1994
Persistent link: https://www.econbiz.de/10000997827
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Nacionalna otraslova klasifikacija : (NOK)
1998
Persistent link: https://www.econbiz.de/10001000293
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Žizneno ravnište - ikonomičeski i socialni pokazateli : (sociologičesko izsledvane)
1999
Persistent link: https://www.econbiz.de/10001469848
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National classification of economic activities (NCEA)
1998
Persistent link: https://www.econbiz.de/10001432682
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Bălgarija
Nacionalen Statističeski Institut <Sofia> - Sofija : [Verlag nicht ermittelbar]; anfangs: Sofija : … - 1995 - 2005[?]; 2009 - 2010; 2013 -
Persistent link: https://www.econbiz.de/10001582096
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Naselenie i demografski procesi
Nacionalen Statističeski Institut <Sofia> - [Sofija] - Nachgewiesen 1999(2000) - 2007(2008)
Persistent link: https://www.econbiz.de/10001607942
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Naselenie
2003
Persistent link: https://www.econbiz.de/10001783426