1. Duffus, J.H. 1993. Glossary for chemists of terms used in toxicology, IUPAC. Pure and Appl. Chem. 65: 2003–2122.
2. Kroes, R. and V.J. Feron. 1984. General toxicity testing: sense and non-sense, science and policy. Fundam. Appl. Toxicol. 4: 298–308.
3. Kroes, R. and V.J. Feron. 1990. Toxicity testing: strategies and conduct. In D.B. Clayson, I.C. Munro, P. Shubik and J.A. Swenberg, eds., Progress in Predictive Toxicology. Elsevier Sci. Publ., Amsterdam, The Netherlands, pp. 15–39.
4. Hatch, T.F. 1962. Changing objectives in occupational health. Am. Ind. Hygiene Assoc. J. 23: 1–7.
5. McColl, R.S. 1990. Biological safety factors in toxicology risk asssessment. Environmental Health Directorate, Health and Welfare, Ottawa, Canada