Kannaiyan, S. <br/><br/>
Azolla biofertilizer for sustainable rice production/ 
Kannaiyan, S. 
 - Delhi  Daya Publishing house  2005 
 - xvi,451 illus  Hbk 
<br/><br/><label>ISBN: </label>8170353564 
<br/><br/><label>LC Class. No.: </label>SB 191.R3 2005