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Osnovy ėkonomiki prirodopolʹzovanija
Šimova, Olʹga S.; Sokolovskij, Nikolaj K. - 1995
Persistent link: https://www.econbiz.de/10000959262
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Sostojanie prirodnoj sredy Belarusi : ėkologičeskij bjulleten' ... goda
Minsk; anfangs: Minsk : Korolov - Nachgewiesen 1992(1994) -
Persistent link: https://www.econbiz.de/10000666532