1. Akhavein, A. A., and D. L. Linscott: The dipyridylium herbicides, paraquat and diquat. Residue Reviews 23, 97 (1968).
2. Alabaster, J. S.: Survival of fish in 164 herbicides, insecticides, fungicides, wetting agents and miscellaneous substances. Internat. Pest Control, pp. 29–35, Mar./ Apr. (1969).
3. Au, F. H. T.: Preliminary study on microbial effect on endothall. Unpub. rept., Agricultural Chemicals Division, Pennwalt Corp., Tacoma, Wash., Oct. 15 (1962).
4. Bailey, G. W., and J. D. White: Review of adsorption and desorption of organic pesticides by soil colloids, with implications concerning bioactivity. J. Agr. Food Chem. 12, 324 (1964).
5. Bailey, G. W., and J. D. White: Factors influencing the adsorption, desorption, and movement of pesticides in soil. Residue Reviews 32, 29 (1970).