THOMPSON,WR <br/><br/>
THE BIOLOGICAL CONTROL OF INSECTS AND PLANT PESTS  A THESIS 

 - LONDON  1930 
 - 124p. : ill ; 25 CM  
 -  PART 2 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>science
<br/><br/><label>Universal Decimal Class. No.: </label>3  / L19