1. P. Jacquemart, J.F. Bois, Notions de Technologie (Delagrave, Paris, 1911)
2. P. Kosieradzki, Heat Treatment of Metals (PWT, Warsaw, 1955). (in Polish)
3. T. Wertime, The Coming of the Age of Steel (University of Chicago Press, Leiden, 1962)
4. J. Zyśk, Development of Gas Nitriding of Iron Alloys (Institute of Precision Mechanics, Warsaw, 2008). (in Polish)
5. C. Singer, A History of Technology (Oxford University Press, Oxford, 1954)