TY  - BOOK
AU  - Beynon, K. I.
TI  - Persistence of insecticides and herbicides ; papers presented at a Symposium..
T2  - British Crop Protection Council. Monograph
U1  - 632.951 
PY  - 1976///
CY  - (London)
PB  - British Crop Protection Council
KW  - Herbicidas
KW  - Insecticidas
ER  -