Bellinger, E.G. 1984–85. Internal working papers. Pollution Research Unit, University of Manchester, Manchester, UK.
Biggs, A.R. and Davies, D.D. 1980. Stomatal response of three birch species exposed to varying acute doses of SO2.J. American Soc. Hort. Science,105, 514–516.
Heath, R.L. 1975. Initial events in injury to plant by air pollutants.Analytical Review Plant Physiology,31, 395–431.
Holdgate, M.W. 1979. A Perspective of environmental pollution. Cambridge University Press.
Mansfield, T.A. (ed.), 1976. Effects of air pollutants on plants, pp.209. Cambridge University Press.
McCune, D.C. and Weinstein, L.H. 1971. Metabolic effects of atmospheric fluorides on plants.Environ. Pollut.,1, 169–174.
Overrein, L. 1980. Results of the Norwegian study of the effects of acidic precipitation on forest and fish resources. Effects of air pollutants on Mediterranean and Temperate forest ecosystems. An International Symposium, Riverside, California, June 22–27.
Reinert, R.A., Heagle, A.S. and Heck, W.W. 1975. Plant responses to pollutant combinations. In: Mudd, J.B. and Kozlowski, T.T. (eds),Responses of Plants to Air Pollutants, pp.159–178. Academic Press, New York.
Silvius, J.E. Ingle, M. and Baer, C.H. 1975. Sulphur dioxide inhibition of photosynthesis in isolated spinach chloroplasts.Plant Physiology,56, 434–437.
Stewart, D., Treshow, M. and Harner, F.M. 1973. Pathological anatomy of conifer needle necrosis,Canadian J. Botany,51, 983–988.
Thomas, M.D. 1958. Air pollution with relation to agronomic crops. I: General status of research on the effects of air pollution on plants.Agron. J.,50, 545–540.
Tisdale, S.L. and Nelson, W.L. 1975.Soil Fertility and Fertilisers 3rd ed., pp.494. Macmillan Publishing Co Inc, New York.
Treshow, M. 1984. Effects of air pollutants on plants. In: Englund, S. and Calvert, S. (eds),Hand-Book on Air Pollution Control Technology, pp.7–24. John Wiley and Sons, Chichester and New York.
Waldron, H.A. 1980. Effects of inhaled materials. In: Waldron, H.A. and Harrington, J.M. (eds),Occupational Hygiene — An Introduction, pp.96–111. Blackwell Press, Oxford.
White, K.N. 1984–85. Internal working papers. Pollution Research Unit, University of Manchester, Manchester, UK.