Andreev, I. A. 1966. Chuvashskij jazyk. In Baskakov, N. A. (ed.), Jazyki narodov SSSR. Volume 2: Tjurkskie jazyki, 43–65. Moscow: Nauka.
@incollection{andreev1966, address = {Moscow}, author = {Andreev, I. A.}, booktitle = {Jazyki narodov SSSR. Volume 2: Tjurkskie jazyki}, editor = {Baskakov, N. A.}, pages = {43–65}, publisher = {Nauka}, title = {Chuvashskij jazyk}, year = {1966} }