1. The Chemistry of Pollution;Fellenberg,2000
2. Toxicological Review of Hexavalent Chromium, U.S. Environmental Protection Agency, National Center for Environmental Assessment, Office of Research and Development, Washington, DC, 1998.
3. Toxicological Profile for Chromium, Agency for Toxic Substances and Disease Registry (ATSDR), U.S. Public Health Service, U.S. Department of Health and Human Services, Atlanta, GA, 1998.
4. Hazardous and Industrial Wastes;Cadena,1990