TransliterationLevinova L.A., Sapgin G.V., Sapgir K.A. Prikljucheniya Kubarika i Tomatika ili veselaya matematika. Chast I. Chast II. Kak iskali Losharika. In Russian
In EnglishLevinova a.A., Sapgin Mr..in., Sapgir K.A. Adventures Kubarika and Tomatika or funny mathematician. Part I. Part II. How for Losharika. In Russian, n/a
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