1. U.S. EPA. IRIS Toxicological Review of Hydrogen Cyanide and Cyanide Salts (Interagency Science Discussion Draft). U.S. Environmental Protection Agency, Washington, DC, EPA/635/R-08/016D, 2010.
2. A. Rubo, R. Kellens, J. Reddy, N. Steier, W. Hasenpusch, Alkali Metal Cyanides. Ullmann's Encyclopedia of Industrial Chemistry, first ed., Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, 2006.
3. Appendix A to Part 423 - 126 Priority Pollutants, in Code of Federal Regulations (United States). Title 40 – Protection of Environment. Vol. 29, 2014.
4. Directive 2008/105/EC of the European Parliament and of the Council on Environmental Quality Standards.
5. Cyanide in Water and Soil Chemistry, Risk, and Management;Dzombak,2006