British Crop Protection Council <br/><br/>
Proceedings of The 1979 British Crop Protection Conference - Pests and Diseases (10th British Insecticide and Fngicide Conference : Vol : I,- 19 th 22nd Nov.1. 

 - 1st 
 -  1979 
<br/><br/><label>Dewey Class. No.: </label>632.9BCPC