Sotsialʹno-ekonomicheskie problemy obraza zhizni sovetskikh liudeiby Chuvashskai︠a︡ A.S.S.R. (R.S.F.S.R.). Nauchno-issledovatelʹskiĭ institut i︠a︡zyka, literatury, istorii i ėkonomikiWriting a summary for young readers…For young readersBook data: Open Library