Mazur K.I. Reshebnik vsekh konkursnykh zadach po matematike sbornika pod red M.I. Skanavi v 2-kh kn.,  vyp 4/Mazur K.I. Reshebnik of all competitive tasks in mathematics of the compendium edited by M.I. Skanavi in 2 books, volume 4 In Russian - landofmagazines.com

TransliterationMazur K.I. Reshebnik vsekh konkursnykh zadach po matematike sbornika pod red M.I. Skanavi v 2-kh kn., vyp 4

In EnglishMazur K.I. Reshebnik of all competitive tasks in mathematics of the compendium edited by M.I. Skanavi in 2 books, volume 4 In Russian

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