TransliterationA.S.Insarov, G.G.Sitnikov, I.I.Fedenko. Povolzhe. Spravochnik-putevoditel po Volge, Kame, Oke i ikh sudokhodnym pritokam na 1933 god.
In EnglishA.S. Insarov, G.G. Sitnikov, I.I. Fedenko. Volga Region. Guide to the Volga, Kama, Oka and their navigable tributaries for 1933. In Russian
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