HELYER, Neil <br/><br/>
A colour handbook of biological control in plant protection 

 - London.  Manson pub.  2004 
 - 126 p.: ill. 
<br/><br/><label>ISBN: </label>1874545286 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biological control
<br/><br/><label>Dewey Class. No.: </label>632.96  / HEL