SINGH NIRANKARI LAL <br/><br/>
TEXT BOOK OF FERTILIZERS AND MANURES 

 - AMAN PUBLISHING HOUSE  MEERUT  2001 
 - 175 
<br/><br/><label>ISBN: </label>8187253304     
<br/><br/><label>Dewey Class. No.: </label>631.8  / Si645