1. L. L. Zusman, The Circulation of Metal in the National Economy of the USSR [in Russian], Akademkniga, Moscow (1962).
2. B. Stoughton, The Metallurgy of Iron and Steel, McGraw-Hill Book Co., New York (1908).
3. J. W. Richards, Metallurgical Calculations, Hill Publishing Co., London (1917).
4. H. Manlove and Ch. Vickers, Scrap Metals. Study of Iron and Steel Old Material, Its Preparation and Markets, Penton Publishing Co., Cleveland (1918).
5. E. C. Eckel, Coal, Iron, and War: A Study in Industrialism Past and Future, H. Holt and Co., New York (1920).