1. 1) US EPA(1975) US environmental and protection agency report on suspect carcinogens in water supply, June 17.
2. 2) Dunlop, W. J, Shew, D. C., Scalf, M. R., Cosby, R. L. and Robertson, M. J. (1976) Identification and analysis of organic pollutions in water, In “Annual Arbor Science (Ed. by keith, L.H.)”, Ann Arbor, MI, Ch. 27, p.453.
3. Polychlorinated phenols, guaiacols and catechols in environment
4. Application of Cytotoxicity Test for Toxic Micropollutants.