7th British Insecticide and fungicide conf. 1973: proceedings - Vol.1
British Crop protection council
7th British Insecticide and fungicide conf. 1973: proceedings - Vol.1 - Worcester BCPC 1973 - 372
R632.951 / C53P
7th British Insecticide and fungicide conf. 1973: proceedings - Vol.1 - Worcester BCPC 1973 - 372
R632.951 / C53P