Pitchaiah P Sankara <br/><br/>
Water ecology pollution and management 
Pitchaiah P Sankara; Sambasivarac B 
 - Allahabad  Chugh India         1991 
<br/><br/><label>Standard No.: </label>59249 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>GEOGRAPHY
<br/><br/><label>Dewey Class. No.: </label>U2:(D85), N1.1-.2