Cherrett, J.M. <br/><br/>
Origins of Pest, Parasite, Disease and Weed Problems. : The 18th symposium of the British Ecological Society, Bangor. 12-14, 19. 

 - 1st 
 -  1977 
<br/><br/><label>Dewey Class. No.: </label>632.96CHE/SAG