About Chuvash: Ethnogr. a sketch of an unknown author. XVIII century / With predisl. and note. V. Magnitsky. - Kazan: type. Lips. pravl., 1888.-34-67 p. ; 23. - Author. established according to the ed.: Zelenin DK Bibliogr. the index of Russian ethnogr. literature on the external life of the peoples of Russia. 1700-1910. St. Petersburg, 1913. No. 1701.
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