KANNAIYAN,S <br/><br/>
Azolla Biofertilizer for Sustainable Rice Production 

 - Newdelhi:  Daya Pub  2005 
 - XVI,452 p 
<br/><br/><label>ISBN: </label>81-7035-356-4 
<br/><br/><label>Dewey Class. No.: </label>633.18898