Nitrogen use efficiency in plants/ 
Jain, Vanita 
 - 1st ed. 
 - New Delhi:  New India Publishing Agency,  2011. 
 - 235 pg 
<br/><br/><label>ISBN: </label>9789380235738 
<br/><br/><label>Dewey Class. No.: </label>571.2  / JAI/N