TANDON, H.L.S. <br/><br/>
Phosphorus research & agricultural productions 

 - Newdelhi  Fertiliser development & cons  ultation or1987 
 - xii, 160p. 
<br/><br/><label>ISBN: </label>8185116016 
<br/><br/><label>Dewey Class. No.: </label>631.81