Short description: In Russian. Smirnov, Leonid Petrovich. Working Process Theory in a Piston Steam Machine. Moscow: Mashgiz, 1951. Teoriya rabochego protsessa v porshnevoy parovoy mashine. In Russian /Process theory in a steam piston engine . 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. SKU6024425