In Russian. Leonidov, Nikolai Konstantinovich. Technological progress in blast furnace production. Moscow: Chermetinformatsiya, 1971. Tekhnicheskiy progress v domennom proizvodstve. In Russian /Technological progress in blast furnace production . 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. SKU7153977