Short description: In Russian. Yudanov, Ivan Grigorievich. To the Knowledge of the Zamora of the Obi River (Hydrochemical Research). Part 1. Krasnoyarsk: 1929-. K poznaniyu zamora r. Obi (gidrokhimicheskoe issledovanie). Ch. 1. In Russian /To the knowledge of the frozen Ob River (hydrochemical research). Part 1. The image is provided for reference only. It may reflect condition of one of the available copies or only help in identifying the edition. Please feel free to contact us for a detailed description of the copies available. SKU9254841