Ordish, George <br/><br/>
Biological methods in crop pest control : an introductory study 

 - London  Constable  1967 
 - 242p.  21cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pest control
<br/><br/><label>LC Class. No.: </label>SB975.O73