In Russian. Thieme, Vladimir Albertovich. Optimization of technical and economic parameters of hydroturbines. Leningrad: Mechanical engineering. Leningrad Division, 1976. Optimizatsiya tekhniko-ekonomicheskikh parametrov gidroturbin. In Russian /Optimization of the technical and economic parameters of hydroturbines . All images are for identification of editions only. Several books of the same edition may be available. Please feel free to request photos of available books. SKU6978295