American Society for Metals, Westbrook, J. H., & Conrad, H. (1973). The science of hardness testing and its research applications: Based on papers presented at a symposium of the American Society for Metals, October 18 to 20, 1971. American Society for Metals.
Chicago-referens (17:e uppl.)American Society for Metals, J. H. Westbrook, och Hans Conrad. The Science of Hardness Testing and Its Research Applications: Based on Papers Presented at a Symposium of the American Society for Metals, October 18 to 20, 1971. Metals Park, Ohio: American Society for Metals, 1973.
MLA-referens (8:e uppl.)American Society for Metals, et al. The Science of Hardness Testing and Its Research Applications: Based on Papers Presented at a Symposium of the American Society for Metals, October 18 to 20, 1971. American Society for Metals, 1973.