Pitchaiah, P. Sankara and Rao, B. Sambasiva <br/><br/>
Water ecology pollution and management 

 - Allahabad  ; Chugh  , 1991 
 - xii,298p. 
<br/><br/><label>ISBN: </label>8185076  600 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pollution<br/>Water Pollution
<br/><br/><label>Dewey Class. No.: </label>363.7394  / PIT