Debach, Paul. <br/><br/>
Biological control of insects pest and weeds 

 - London :  Chapman & Hall,  1964 
 - 844 p.  : ilus. 
<br/><br/><label>LCCN: </label>73538 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Entomología económica.<br/>Malas hierbas--Control.
<br/><br/><label>Dewey Class. No.: </label>632.9  / D42