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2. Walsh K. A., Chem. Week 158, 38 (1996).
3. EPA Manual Best Management Practices for Pollution Prevention in the Textile Industry (RPA/625/R-96/004 Office of Research and Development U.S. Environmental Protection Agency Washington DC September 1996).
4. D. Machalaba “Decades of mishandling hazardous cargo leave railroads a toxic legacy ” Wall Street Journal 3 February 1999.
5. 1993 Economic Impact Analysis of Halogenated Solvent Cleaning (National Emission Standards for Hazardous Air Pollutants Environmental Protection Agency Washington DC 1993).