1. Agriculture Research Council. Report of the Research Committee on Toxic Chemicals,1964
2. Statutory Instruments. Pesticides. The Pesticide (Maximum Residue Levels in Food) Regulations 1988. Leaflet No. 1378,1988
3. Genetic control;Boller,1987
4. Effects of pesticide use and farm management on carabids in arable crops;Booij,1988
5. Investigations on the biological control of the cabbage root fly (Hylemya brassicae) with Aleochara bilineata;Bromand,1990