Singh Rana P. <br/><br/>
nitrogen Nutrition in plant productivity 

 -  u.s.a.  2006 
 - xiv/388 
<br/><br/><label>ISBN: </label>1933699000 
<br/><br/><label>LC Class. No.: </label>572.542/NIT  / 5 
<br/><br/><label>Dewey Class. No.: </label>572.542/NIT  / 5