7th British Insecticide and fungicide conf. 1973: proceedings - Vol.2
British Crop Protection Council
7th British Insecticide and fungicide conf. 1973: proceedings - Vol.2 - Worcester BCPC 1973 - 373-753
R632.951 / C53P
7th British Insecticide and fungicide conf. 1973: proceedings - Vol.2 - Worcester BCPC 1973 - 373-753
R632.951 / C53P