Agricultural nitrogen use and its environmental implications / 
edited Y. P. Abrol, N. Raghuram and M. S. Sachdev. 
 - ed. 
 - New Delhi :  I. K. International Publishing,  2007. 
 - 552 pages :  illustrations ;  cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>9788189866334 :  US$95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural nitrogen.