Rao, P. Venugopala <br/><br/>
Principles of environmental science and engineering 

 - New Delhi  ; Prentice-Hall Of India  , 2006 
 - xii,276p. 
<br/><br/><label>ISBN: </label>8120328930  225 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental Engineering
<br/><br/><label>Dewey Class. No.: </label>628  / RAO