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С51	Сhemistry [Текст] = Хімія : Methodical instructions on performance of laboratory works for the students of speciality 7.070801 "Ecology and environment protection" / Compiled by: Ivanov S.V., Sokolsky G.V.; Ministry of education and scinces of Ukraine;NAU (англiйською мовою). — Kyiv, 2001. — 166 p.