1. Phenols-sources and toxicity;Michałowicz;Polish J. Environ. Stud.,2007
2. Code of Federal Regulations (CFR), 40CFR - CHAPTER I - PART 423: Appendix A to Part 423 http://water.epa.gov/scitech/methods/cwa/pollutants.cfm
3. U.S. Ambient Water Quality Criteria for Phenol E.P.A. 440/5–80-066 E.P.A. Washington, DC, 1980
4. Drinking Water Directive 80/778/EEC Commission of the European Communities Brussels 1980
5. Directive 75/440/EEC. Commission of the European Communities. Brussels, 1975.