1. Wade N. Harris Midland-Ross Corporation: A Story of Diversification , (Newcomen Society in North America, 1964)
2. John T. Kopfle A Better Mousetrap: The History of Midrex Technologies. Direct from Midrex, 1 st Quarter, 2004, pp 3, 2 nd Quarter, 2004, pp 6, 3 rd Quarter, 2004, pp 11, and 4 th Quarter, 2004, pp 6, Midrex Technologies. http://www.midrex.com/
3. Donald Beggs John C. Scarlett Method of and Apparatus for Reducing Iron Oxide to Metallic Iron. US Patent 3748120, granted July 24, 1973