Books by Petrov, N. P.
Nikolaĭ Petrovich Petrov
Nikolaĭ Petrovich Petrov
Śĕr pin chechek śĕrshyvĕn
Śĕr pin chechek śĕrshyvĕnche
Ėnergetika I͡Uzhnoĭ I͡Akutii
Ėnergetika I͡Uzhnoĭ I͡Akutii
Razvitie fonetiki i norm proiz
Razvitie fonetiki i norm proiznoshenii͡a︡ chuvashskogo literaturnogo i͡a︡zyka v sovetskui͡u︡ ėpokhu
Chăvash literatura chĕlkhin
Chăvash literatura chĕlkhin istoriĭĕ
Revoli︠u︡t︠s︡ichchenkhi chăvas
Revoli︠u︡t︠s︡ichchenkhi chăvash pisatelĕsen proizvedeniĭĕsem
Finansovoe polozhenīe russkoi
Finansovoe polozhenīe russkoĭ zheli͡e︡znodorozhnoĭ si͡e︡ti i glavni͡e︡ĭshīi͡a︡ prichiny ukhudshenīi͡a︡ ego v posli͡e︡dnīe gody