In Russian. Vorobiev, Vladimir Grigorievich. Improvement of reliability of mechanical engineering and instrument building by methods of thermal hardening. Moscow: VNIIKI, 1975. Povyshenie nadezhnosti mashinostroeniya i priborostroeniya metodami termicheskogo uprochneniya. In Russian /Improving the reliability of mechanical engineering and instrument-making by thermal hardening methods. 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. SKU6915840