Short description: In Russian. Ognev, Gavriil Nikolaevich. Geological observations at the Lensko-Amginsky watershed. Leningrad: Publishing House of Acad. sciences of the USSR, 1927: type. 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. SKU9226138