1. Arsenic speciation in the environment
2. International Agency for Research on Cancer (1980)IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Humans, p 20, Lyon, France.
3. U.S. Environmental Protection Agency (1988) Special Report on Ingested Inorganic Arsenic Skin Cancer; Nutritional Essentiality, Technical Report EPA/625/8-87/013, Washington, DC.