1. American Petroleum Institute, Environmental Protection Agency, and us Coast Guard (1987), 1987 Oil Spill Conference, Proceedings - Tenth Biennial, Baltimore, Maryland, April 6 - 9.
2. Bishop, D. F. and Jaworski, N. A. (1986), ‘Biological treatment of toxics in wastewater: The problems and opportunities’. Proceedings of the International Conference on Innovative Biological Treatment of Toxic Wastewaters, Arlington, Virginia, June 24–6.
3. Botts, J. A., Braswell, J. W., Zyman, J., Goodfellow, W. L. and Moore, S. B. (1989), Toxicity Reduction Evaluation Protocol for Municipal Wastewater Treatment Plants, us Environmental Protection Agency, EPA/600/2-88/062, ntispb89- 195218. ( Cincinnati, Ohio: Risk Reduction Engineering Laboratory ).
4. Bruins, R. J. F., Fradkin, J. and Stara, J. F. (1987), ‘Summary of risk assessment methodologies for municipal sludge reuse or disposal options’. Proceedings of the National Conference on Municipal Sewage Treatment Plant Sludge Management, Boston, Massachusetts, May
27–9.
5. Center for Environmental Assessment (1986), Foreign Practices in Hazardous Waste Minimization ( Medford, Mass.: Tufts University).