Short description: In Russian. Polkanov, Ivan Petrovich. Theory and Calculation of Machine and Tractor Units. Moscow: Machine Building, 1964. Teoriya i raschet mashinno-traktornykh agregatov. In Russian /The theory and calculation of machinery and tractors . 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. SKU6457727