Rup Lal <br/><br/>
Pesticides and nitrogen cycle 

 - Boca Raton  CRC Press  1988 
 - 3 Vols 
<br/><br/>Rup Lal & Sukanya Lal: Pesticides and nitrogen cycle.  Boca Raton.  CRC Press, 1988. 0-8493-4353-4--(589.95LAL)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>0-8493-4353-4 
<br/><br/><label>Dewey Class. No.: </label>589.95  / LAL