Weed management handbook/ 
Naylor,Robert E L. 
 - 9th.ed. 
 - New Delhi:  John Wiley & sons,  2013. 
 - 423 
<br/><br/><label>ISBN: </label>9788126537846 
<br/><br/><label>Dewey Class. No.: </label>632.5  / NAY/W