Proc. of the sixth British Insecticide and fungicide conf. - Vol.2
British Crop Protection Council
Proc. of the sixth British Insecticide and fungicide conf. - Vol.2 - Worcester BCPC 1971 - 324-629
R632.951 / C53P
Proc. of the sixth British Insecticide and fungicide conf. - Vol.2 - Worcester BCPC 1971 - 324-629
R632.951 / C53P