Rao, P Venugopal <br/><br/>
Text book of environmental engineering 

 - New Delhi  PHI  2003 
 - xii, 268p 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environment Engineering
<br/><br/><label>Dewey Class. No.: </label>363.731 RA-T  / RA-T