Upadhyay, Alka Rani <br/><br/>
Aquatic plants for the waste water treatment 

 - 1st 
 - Delhi  Daya Publishing House  2004 
 - 181p. 
<br/><br/> 19962 
<br/><br/><label>ISBN: </label>8170353351  395 
<br/><br/><label>Dewey Class. No.: </label>581.76 UPA A