TY  - BOOK
AU  - Ripper, W.E. 
TI  - Pest control: farmers' handbook
U1  - 632.5 21st ed.
PY  - 1950///
CY  - Cambridge
PB  - Pest Control
KW  - Pests-Control-Great Britain-Handbooks, manuals, etc
KW  - Insecticides-Handbooks, manual, etc
KW  - Herbicides-Handbooks, manuals, etc
ER  -