1. National Academy of Sciences. Washington;National Research Council (Committee on Medical and Biological Effects of Environmental Pollutants). Nickel;D. C.,1975
2. International Agency for Research on Cancer. Nickel and nickel compounds. IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Man Vol. 11 Lyon 1976 pp. 75-112.
3. Criteria for a Recommended Standard: Occupational Exposure to Inorganic Nickel. DHEW/NIOSH Publication No. 77-164, U.S. Government Printing Office. Washington;National Institute for Occupational Safety and Health;D. C.,1977
4. The current status of nickel carcinogenesis;Sunderman F. W.;Ann. Clin. Lab. Sci.,1973
5. A review of the carcinogenicities of nickel, chromium and arsenic compounds in man and animals