Short description: In Russian. Kurek, Nikolai Nikolaevich. Sekisovskoye deposit of refractory clay in Altai. Moscow; Leningrad: Geological publication of the Main Geological Exploration Department, 1930. 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. SKU9210454