Short description: In Russian. Kovalev, Kuzma Nikonovich. The biosocial nature of human sexual life. Moscow: Prometheus, 1931, in the region: 1930 (Smolensk: Smirnov Hotel). 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. SKU9296379