Istoriko-etnograficheskie issledovaniia v Chuvashskoi SSRby Chuvashskai︠a︡ A.S.S.R. (R.S.F.S.R.). Nauchno-issledovatelʹskiĭ institut i︠a︡zyka, literatury, istorii i ėkonomikiEthnologyWriting a summary for young readers…For young readersBook data: Open Library