Vasilev V.I. Arifmetika. Otnosheniya, proportsii i sposoby resheniya zadach na pravila: troynye, protsentov, ucheta vekseley i pr./Vasiliev V.I. Arithmetic. Relationships, proportions and ways of solving problems on the rules: triple, interest, bill accounting, etc. In Russian - landofmagazines.com

TransliterationVasilev V.I. Arifmetika. Otnosheniya, proportsii i sposoby resheniya zadach na pravila: troynye, protsentov, ucheta vekseley i pr.

In EnglishVasiliev V.I. Arithmetic. Relationships, proportions and ways of solving problems on the rules: triple, interest, bill accounting, etc. In Russian

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