1. Brittin, W. E. (ed.), 1972. “Air and Water Pollution.” Colorado Associated University Press, Boulder, Colorado.
2. Bond, R. G., and C. P. Straub (eds.), 1973. “Handbook of Environmental Control,” Vol. 1, “Air Pollution.” CRC Press, Cleveland, Ohio.
3. Eisenbud, M., 1973. “Environmental Radioactivity.” Academic Press, New York.
4. Epstein, S. S., and M. S. Legator (eds.), 1971. “The Mutagenicity of Pesticides: Concepts, and Evaluation.” MIT Press, Cambridge, Massachusetts.
5. Fishbein, L., W. G. Flamm, and H. L. Falk, 1970. “Chemical Mutagens, Environmental Effects on Biological Systems.” Academic Press, New York.