Rai,A.N/Singh,D.B  <br/><br/>
Ways to maintain soil fertility  

 - New dehli   Government of indian press   1987  
 - 28p;ill   pbk  
<br/><br/><label>Subjects--Topical Terms: </label><br/>soil fertility <br/>soil management 
<br/><br/><label>LC Class. No.: </label>S605 . W3 1987