1. A.H. Sully, Chromium, 1st ed. (London: Butterworths Scientific Publications, 1954).
2. C.T. Sims, “The Case for Chromium,” J. Metals, 15 (2) (1963), pp. 127–132.
3. W.J. Kroll, “Research on Chromium in America,” Ductile Chromium and its Alloys (Materials Park, OH: ASM, 1957), pp. 4–13.
4. A.H. Sully, “Research on Chromium in Europe,” Ductile Chromium and its Alloys (Materials Park, OH: ASM, 1957), pp. 14–26.
5. H.L. Wain, “Research on Chromium in Australia,” Ductile Chromium and its Alloys (Materials Park, OH: ASM, 1957), pp. 27–57.