Short description: In Russian. Tsitovich, Ivan Sergeevich. The origin and formation of natural conditional reflexes. St. Petersburg: type. Proiskhozhdenie i obrazovanie natural'nykh uslovnykh refleksov. In Russian /The origin and formation of natural conditional reflexes. 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. SKU3786649