Lev Semenovich Berg

Lev Semenovich Berg is the author of "Geograficheskie Zony Sovetskogo Soiuza", "Ocherki Po Istorii Russkikh Geograficheskikh Otkrytii", "Loess As a Product of Weathering and Soil Formation. (Less Kak Produkt Vyvetrivaniya i Pochvoobrazonvaniya. )" and "Vsesoiuznoe...