1. United Nations Environment Programme (UNEP), Guidelines for the Identification of PCBs and Materials Containing PCBs, Geneva, Switzerland, First issue, August, 1999.
2. Agency for Toxic Substances and Disease Registry (ATSDR). ToxFAQs: Polychlorinated biphenyls. Internet: http://atsdr1.atsdr.cdc.gov:8080/tfacts17.html, Atlanta, GA, USA, 1997.
3. Polychlorinated Biphenyls (PCBs), Dibenzo-p-Dioxins (PCDDs), Dibenzofurans (PCDFs), and Related Compounds: Environmental and Mechanistic Considerations Which Support the Development of Toxic Equivalency Factors (TEFs)
4. Analytical quality control for the determination of polychlorobiphenyls in environmental matrices
5. NOAA Technical Memorandum NOS NCCOS CCMA 146, Silver Spring, ML, July, 2000.