[Translated from the Russian; edited by George Yankovsky] Translated from the Russian by George Yankovsky. translated from the Russian by George Yankovsky. [translated from the Russian ; edited by Murad Saifulin]. Translated from the Russian by Yuri Atanov. L. Elsgolts. Translated from the Russian by George Yankovsky. Translated from the Russian by D. Lyubeznov. Translated from the Russian by Maria Konyaeva. M. Vygodsky ; translated from the Russian by George Yankovsky. N. Piskunov ; translated from the Russian by George Yankovsky.