1. Acree, F. Jr., M. Beroza, and M. C. Bowman: Codistillation of DDT with water. J. Agr. Food Chem. 11, 278 (1963).
2. Ball, H. J.: A five year study of potential western corn rootworm resistance to diazinon and phorate in Nebraska. J. Econ. Entomol. 61, 496 (1968).
3. Beirne, B. P.: Pest insects of annual crop plants in Canada. I. Lepidoptera, II. Diptera, III. Coleoptera. Mem. Entomol. Soc. Canada 78, (1971).
4. Beirne, B. P.: Pest insects of annual crop plants in Canada. IV. Hemiptera-Homoptera, V. Orthoptera, VI. Other groups. Mem. Entomol. Soc, Canada 85, (1972).
5. Blackwood, A. C. (Coordinator): Intensive agriculture and water pollution. Prog. Rept. Faculty Agr., Macdonald Campus, McGill Univ. (1971).