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Priložna ekologija i ikonomika na okolnata sreda
Apostolov Iliev, Nikola (contributor);  … - 1993
Persistent link: https://www.econbiz.de/10000885414
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Ekologija i ikonomika
Božinov, Todor B. (contributor) - 1990 - Izd. 1
Persistent link: https://www.econbiz.de/10000876612
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Ekologičnite organičenija vărchu ikonomičeskija rastež v Bălgarija
Dančev, Aleksi - In: Ikonomičeska misăl 36 (1991) 8, pp. 30-43
Persistent link: https://www.econbiz.de/10001165180
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Ekologija i zaetost
Dimitrova, Elka - In: Problemi na truda : teoretiko-priložno spisanie po … 38 (1997) 5, pp. 23-31
Persistent link: https://www.econbiz.de/10001227056
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Văzmožnosti za prilagane na ikonomičeski instrumenti v ekologičnata politika
Dančev, Aleksi (contributor) - In: Ikonomičeska misăl 42 (1997) 4, pp. 20-36
Persistent link: https://www.econbiz.de/10001229780
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Okolna sreda - bednost
Conev, Stefan - In: Statistika / Nacionalen Statističeski Institut 54 (2002) 4, pp. 104-112
Persistent link: https://www.econbiz.de/10001765124
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Promišlenost i okolna sreda
Dimitrova, Cvetana P. (contributor) - 1993 - 1. dop. izd
Persistent link: https://www.econbiz.de/10000946970
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Meždunarodnopraven režim na Dunava : sbornik
Kamenov, Evgenij G. (contributor) - 1964
Persistent link: https://www.econbiz.de/10014378176
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Problemi na vodnoto stopanstvo i stroitelstvo : jubileen sbornik
1981
Persistent link: https://www.econbiz.de/10003210609