Gorbachevich, Kirill Sergeyevich, author
Prosvesshenie, 1971
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Ozhegov, S.I., author
Russkij Yazyk, 1981
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Gosudarstvennor izdatel'tvo inostrannyx i natsional'nyx slovarej, 1958
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Академия наук СССР
Akademija Nauk SSSR, 1960
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Kozhina, Margarita Nikolayevna, author
Prosveshheeniw, 1983
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